[presentations] 01/02: Add reveal.js for DebConf17.

Chris Lamb chris at chris-lamb.co.uk
Fri Aug 11 11:37:08 UTC 2017


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lamby pushed a commit to branch master
in repository presentations.

commit a3d4f1a4e35df0904328dba5440f50bd417394f8
Author: Chris Lamb <lamby at debian.org>
Date:   Fri Aug 11 07:36:34 2017 -0400

    Add reveal.js for DebConf17.
---
 2017-08-11-DebConf17/css/print/paper.css           |  202 +
 2017-08-11-DebConf17/css/print/pdf.css             |  160 +
 2017-08-11-DebConf17/css/reveal.css                | 1338 ++++++
 2017-08-11-DebConf17/css/reveal.scss               | 1379 ++++++
 2017-08-11-DebConf17/css/theme/README.md           |   21 +
 2017-08-11-DebConf17/css/theme/beige.css           |  290 ++
 2017-08-11-DebConf17/css/theme/black.css           |  286 ++
 2017-08-11-DebConf17/css/theme/blood.css           |  309 ++
 2017-08-11-DebConf17/css/theme/league.css          |  292 ++
 2017-08-11-DebConf17/css/theme/moon.css            |  290 ++
 2017-08-11-DebConf17/css/theme/night.css           |  284 ++
 2017-08-11-DebConf17/css/theme/serif.css           |  286 ++
 2017-08-11-DebConf17/css/theme/simple.css          |  286 ++
 2017-08-11-DebConf17/css/theme/sky.css             |  293 ++
 2017-08-11-DebConf17/css/theme/solarized.css       |  290 ++
 2017-08-11-DebConf17/css/theme/source/beige.scss   |   39 +
 2017-08-11-DebConf17/css/theme/source/black.scss   |   49 +
 2017-08-11-DebConf17/css/theme/source/blood.scss   |   79 +
 2017-08-11-DebConf17/css/theme/source/league.scss  |   34 +
 2017-08-11-DebConf17/css/theme/source/moon.scss    |   57 +
 2017-08-11-DebConf17/css/theme/source/night.scss   |   35 +
 2017-08-11-DebConf17/css/theme/source/serif.scss   |   35 +
 2017-08-11-DebConf17/css/theme/source/simple.scss  |   38 +
 2017-08-11-DebConf17/css/theme/source/sky.scss     |   46 +
 .../css/theme/source/solarized.scss                |   63 +
 2017-08-11-DebConf17/css/theme/source/white.scss   |   49 +
 .../css/theme/template/mixins.scss                 |   29 +
 .../css/theme/template/settings.scss               |   43 +
 2017-08-11-DebConf17/css/theme/template/theme.scss |  345 ++
 2017-08-11-DebConf17/css/theme/white.css           |  286 ++
 2017-08-11-DebConf17/js/reveal.js                  | 4677 ++++++++++++++++++++
 2017-08-11-DebConf17/lib/css/zenburn.css           |  115 +
 .../lib/font/league-gothic/LICENSE                 |    2 +
 .../lib/font/league-gothic/league-gothic.css       |   10 +
 .../lib/font/league-gothic/league-gothic.eot       |  Bin 0 -> 25696 bytes
 .../lib/font/league-gothic/league-gothic.ttf       |  Bin 0 -> 64256 bytes
 .../lib/font/league-gothic/league-gothic.woff      |  Bin 0 -> 30764 bytes
 .../lib/font/source-sans-pro/LICENSE               |   45 +
 .../source-sans-pro/source-sans-pro-italic.eot     |  Bin 0 -> 75720 bytes
 .../source-sans-pro/source-sans-pro-italic.ttf     |  Bin 0 -> 238084 bytes
 .../source-sans-pro/source-sans-pro-italic.woff    |  Bin 0 -> 98556 bytes
 .../source-sans-pro/source-sans-pro-regular.eot    |  Bin 0 -> 88070 bytes
 .../source-sans-pro/source-sans-pro-regular.ttf    |  Bin 0 -> 288008 bytes
 .../source-sans-pro/source-sans-pro-regular.woff   |  Bin 0 -> 114324 bytes
 .../source-sans-pro/source-sans-pro-semibold.eot   |  Bin 0 -> 89897 bytes
 .../source-sans-pro/source-sans-pro-semibold.ttf   |  Bin 0 -> 284640 bytes
 .../source-sans-pro/source-sans-pro-semibold.woff  |  Bin 0 -> 115648 bytes
 .../source-sans-pro-semibolditalic.eot             |  Bin 0 -> 75706 bytes
 .../source-sans-pro-semibolditalic.ttf             |  Bin 0 -> 240944 bytes
 .../source-sans-pro-semibolditalic.woff            |  Bin 0 -> 98816 bytes
 .../lib/font/source-sans-pro/source-sans-pro.css   |   39 +
 2017-08-11-DebConf17/lib/js/classList.js           |    2 +
 2017-08-11-DebConf17/lib/js/head.min.js            |    8 +
 2017-08-11-DebConf17/lib/js/html5shiv.js           |    7 +
 2017-08-11-DebConf17/plugin/highlight/highlight.js |   32 +
 2017-08-11-DebConf17/plugin/markdown/example.html  |  129 +
 2017-08-11-DebConf17/plugin/markdown/example.md    |   31 +
 2017-08-11-DebConf17/plugin/markdown/markdown.js   |  402 ++
 2017-08-11-DebConf17/plugin/markdown/marked.js     |    6 +
 2017-08-11-DebConf17/plugin/math/math.js           |   67 +
 2017-08-11-DebConf17/plugin/multiplex/client.js    |   13 +
 2017-08-11-DebConf17/plugin/multiplex/index.js     |   56 +
 2017-08-11-DebConf17/plugin/multiplex/master.js    |   31 +
 2017-08-11-DebConf17/plugin/notes-server/client.js |   65 +
 2017-08-11-DebConf17/plugin/notes-server/index.js  |   68 +
 .../plugin/notes-server/notes.html                 |  407 ++
 2017-08-11-DebConf17/plugin/notes/notes.html       |  407 ++
 2017-08-11-DebConf17/plugin/notes/notes.js         |  127 +
 2017-08-11-DebConf17/plugin/print-pdf/print-pdf.js |   48 +
 2017-08-11-DebConf17/plugin/search/search.js       |  196 +
 2017-08-11-DebConf17/plugin/zoom-js/zoom.js        |  278 ++
 71 files changed, 14501 insertions(+)

diff --git a/2017-08-11-DebConf17/css/print/paper.css b/2017-08-11-DebConf17/css/print/paper.css
new file mode 100644
index 0000000..6588f48
--- /dev/null
+++ b/2017-08-11-DebConf17/css/print/paper.css
@@ -0,0 +1,202 @@
+/* Default Print Stylesheet Template
+   by Rob Glazebrook of CSSnewbie.com
+   Last Updated: June 4, 2008
+
+   Feel free (nay, compelled) to edit, append, and
+   manipulate this file as you see fit. */
+
+
+ at media print {
+
+	/* SECTION 1: Set default width, margin, float, and
+	   background. This prevents elements from extending
+	   beyond the edge of the printed page, and prevents
+	   unnecessary background images from printing */
+	html {
+		background: #fff;
+		width: auto;
+		height: auto;
+		overflow: visible;
+	}
+	body {
+		background: #fff;
+		font-size: 20pt;
+		width: auto;
+		height: auto;
+		border: 0;
+		margin: 0 5%;
+		padding: 0;
+		overflow: visible;
+		float: none !important;
+	}
+
+	/* SECTION 2: Remove any elements not needed in print.
+	   This would include navigation, ads, sidebars, etc. */
+	.nestedarrow,
+	.controls,
+	.fork-reveal,
+	.share-reveal,
+	.state-background,
+	.reveal .progress,
+	.reveal .backgrounds {
+		display: none !important;
+	}
+
+	/* SECTION 3: Set body font face, size, and color.
+	   Consider using a serif font for readability. */
+	body, p, td, li, div {
+		font-size: 20pt!important;
+		font-family: Georgia, "Times New Roman", Times, serif !important;
+		color: #000;
+	}
+
+	/* SECTION 4: Set heading font face, sizes, and color.
+	   Differentiate your headings from your body text.
+	   Perhaps use a large sans-serif for distinction. */
+	h1,h2,h3,h4,h5,h6 {
+		color: #000!important;
+		height: auto;
+		line-height: normal;
+		font-family: Georgia, "Times New Roman", Times, serif !important;
+		text-shadow: 0 0 0 #000 !important;
+		text-align: left;
+		letter-spacing: normal;
+	}
+	/* Need to reduce the size of the fonts for printing */
+	h1 { font-size: 28pt !important;  }
+	h2 { font-size: 24pt !important; }
+	h3 { font-size: 22pt !important; }
+	h4 { font-size: 22pt !important; font-variant: small-caps; }
+	h5 { font-size: 21pt !important; }
+	h6 { font-size: 20pt !important; font-style: italic; }
+
+	/* SECTION 5: Make hyperlinks more usable.
+	   Ensure links are underlined, and consider appending
+	   the URL to the end of the link for usability. */
+	a:link,
+	a:visited {
+		color: #000 !important;
+		font-weight: bold;
+		text-decoration: underline;
+	}
+	/*
+	.reveal a:link:after,
+	.reveal a:visited:after {
+		content: " (" attr(href) ") ";
+		color: #222 !important;
+		font-size: 90%;
+	}
+	*/
+
+
+	/* SECTION 6: more reveal.js specific additions by @skypanther */
+	ul, ol, div, p {
+		visibility: visible;
+		position: static;
+		width: auto;
+		height: auto;
+		display: block;
+		overflow: visible;
+		margin: 0;
+		text-align: left !important;
+	}
+	.reveal pre,
+	.reveal table {
+		margin-left: 0;
+		margin-right: 0;
+	}
+	.reveal pre code {
+		padding: 20px;
+		border: 1px solid #ddd;
+	}
+	.reveal blockquote {
+		margin: 20px 0;
+	}
+	.reveal .slides {
+		position: static !important;
+		width: auto !important;
+		height: auto !important;
+
+		left: 0 !important;
+		top: 0 !important;
+		margin-left: 0 !important;
+		margin-top: 0 !important;
+		padding: 0 !important;
+		zoom: 1 !important;
+
+		overflow: visible !important;
+		display: block !important;
+
+		text-align: left !important;
+		-webkit-perspective: none;
+		   -moz-perspective: none;
+		    -ms-perspective: none;
+		        perspective: none;
+
+		-webkit-perspective-origin: 50% 50%;
+		   -moz-perspective-origin: 50% 50%;
+		    -ms-perspective-origin: 50% 50%;
+		        perspective-origin: 50% 50%;
+	}
+	.reveal .slides section {
+		visibility: visible !important;
+		position: static !important;
+		width: auto !important;
+		height: auto !important;
+		display: block !important;
+		overflow: visible !important;
+
+		left: 0 !important;
+		top: 0 !important;
+		margin-left: 0 !important;
+		margin-top: 0 !important;
+		padding: 60px 20px !important;
+		z-index: auto !important;
+
+		opacity: 1 !important;
+
+		page-break-after: always !important;
+
+		-webkit-transform-style: flat !important;
+		   -moz-transform-style: flat !important;
+		    -ms-transform-style: flat !important;
+		        transform-style: flat !important;
+
+		-webkit-transform: none !important;
+		   -moz-transform: none !important;
+		    -ms-transform: none !important;
+		        transform: none !important;
+
+		-webkit-transition: none !important;
+		   -moz-transition: none !important;
+		    -ms-transition: none !important;
+		        transition: none !important;
+	}
+	.reveal .slides section.stack {
+		padding: 0 !important;
+	}
+	.reveal section:last-of-type {
+		page-break-after: avoid !important;
+	}
+	.reveal section .fragment {
+		opacity: 1 !important;
+		visibility: visible !important;
+
+		-webkit-transform: none !important;
+		   -moz-transform: none !important;
+		    -ms-transform: none !important;
+		        transform: none !important;
+	}
+	.reveal section img {
+		display: block;
+		margin: 15px 0px;
+		background: rgba(255,255,255,1);
+		border: 1px solid #666;
+		box-shadow: none;
+	}
+
+	.reveal section small {
+		font-size: 0.8em;
+	}
+
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/print/pdf.css b/2017-08-11-DebConf17/css/print/pdf.css
new file mode 100644
index 0000000..9ed90d6
--- /dev/null
+++ b/2017-08-11-DebConf17/css/print/pdf.css
@@ -0,0 +1,160 @@
+/**
+ * This stylesheet is used to print reveal.js
+ * presentations to PDF.
+ *
+ * https://github.com/hakimel/reveal.js#pdf-export
+ */
+
+* {
+	-webkit-print-color-adjust: exact;
+}
+
+body {
+	margin: 0 auto !important;
+	border: 0;
+	padding: 0;
+	float: none !important;
+	overflow: visible;
+}
+
+html {
+	width: 100%;
+	height: 100%;
+	overflow: visible;
+}
+
+/* Remove any elements not needed in print. */
+.nestedarrow,
+.reveal .controls,
+.reveal .progress,
+.reveal .playback,
+.reveal.overview,
+.fork-reveal,
+.share-reveal,
+.state-background {
+	display: none !important;
+}
+
+h1, h2, h3, h4, h5, h6 {
+	text-shadow: 0 0 0 #000 !important;
+}
+
+.reveal pre code {
+	overflow: hidden !important;
+	font-family: Courier, 'Courier New', monospace !important;
+}
+
+ul, ol, div, p {
+	visibility: visible;
+	position: static;
+	width: auto;
+	height: auto;
+	display: block;
+	overflow: visible;
+	margin: auto;
+}
+.reveal {
+	width: auto !important;
+	height: auto !important;
+	overflow: hidden !important;
+}
+.reveal .slides {
+	position: static;
+	width: 100%;
+	height: auto;
+
+	left: auto;
+	top: auto;
+	margin: 0 !important;
+	padding: 0 !important;
+
+	overflow: visible;
+	display: block;
+
+	-webkit-perspective: none;
+	   -moz-perspective: none;
+	    -ms-perspective: none;
+	        perspective: none;
+
+	-webkit-perspective-origin: 50% 50%; /* there isn't a none/auto value but 50-50 is the default */
+	   -moz-perspective-origin: 50% 50%;
+	    -ms-perspective-origin: 50% 50%;
+	        perspective-origin: 50% 50%;
+}
+
+.reveal .slides section {
+	page-break-after: always !important;
+
+	visibility: visible !important;
+	position: relative !important;
+	display: block !important;
+	position: relative !important;
+
+	margin: 0 !important;
+	padding: 0 !important;
+	box-sizing: border-box !important;
+	min-height: 1px;
+
+	opacity: 1 !important;
+
+	-webkit-transform-style: flat !important;
+	   -moz-transform-style: flat !important;
+	    -ms-transform-style: flat !important;
+	        transform-style: flat !important;
+
+	-webkit-transform: none !important;
+	   -moz-transform: none !important;
+	    -ms-transform: none !important;
+	        transform: none !important;
+}
+
+.reveal section.stack {
+	margin: 0 !important;
+	padding: 0 !important;
+	page-break-after: avoid !important;
+	height: auto !important;
+	min-height: auto !important;
+}
+
+.reveal img {
+	box-shadow: none;
+}
+
+.reveal .roll {
+	overflow: visible;
+	line-height: 1em;
+}
+
+/* Slide backgrounds are placed inside of their slide when exporting to PDF */
+.reveal section .slide-background {
+	display: block !important;
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	z-index: -1;
+}
+
+/* All elements should be above the slide-background */
+.reveal section>* {
+	position: relative;
+	z-index: 1;
+}
+
+/* Display slide speaker notes when 'showNotes' is enabled */
+.reveal .speaker-notes-pdf {
+	display: block;
+	width: 100%;
+	max-height: none;
+	left: auto;
+	top: auto;
+	z-index: 100;
+}
+
+/* Display slide numbers when 'slideNumber' is enabled */
+.reveal .slide-number-pdf {
+	display: block;
+	position: absolute;
+	font-size: 14px;
+}
+
diff --git a/2017-08-11-DebConf17/css/reveal.css b/2017-08-11-DebConf17/css/reveal.css
new file mode 100644
index 0000000..9739291
--- /dev/null
+++ b/2017-08-11-DebConf17/css/reveal.css
@@ -0,0 +1,1338 @@
+/*!
+ * reveal.js
+ * http://lab.hakim.se/reveal-js
+ * MIT licensed
+ *
+ * Copyright (C) 2016 Hakim El Hattab, http://hakim.se
+ */
+/*********************************************
+ * RESET STYLES
+ *********************************************/
+html, body, .reveal div, .reveal span, .reveal applet, .reveal object, .reveal iframe,
+.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6, .reveal p, .reveal blockquote, .reveal pre,
+.reveal a, .reveal abbr, .reveal acronym, .reveal address, .reveal big, .reveal cite, .reveal code,
+.reveal del, .reveal dfn, .reveal em, .reveal img, .reveal ins, .reveal kbd, .reveal q, .reveal s, .reveal samp,
+.reveal small, .reveal strike, .reveal strong, .reveal sub, .reveal sup, .reveal tt, .reveal var,
+.reveal b, .reveal u, .reveal center,
+.reveal dl, .reveal dt, .reveal dd, .reveal ol, .reveal ul, .reveal li,
+.reveal fieldset, .reveal form, .reveal label, .reveal legend,
+.reveal table, .reveal caption, .reveal tbody, .reveal tfoot, .reveal thead, .reveal tr, .reveal th, .reveal td,
+.reveal article, .reveal aside, .reveal canvas, .reveal details, .reveal embed,
+.reveal figure, .reveal figcaption, .reveal footer, .reveal header, .reveal hgroup,
+.reveal menu, .reveal nav, .reveal output, .reveal ruby, .reveal section, .reveal summary,
+.reveal time, .reveal mark, .reveal audio, video {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  font-size: 100%;
+  font: inherit;
+  vertical-align: baseline; }
+
+.reveal article, .reveal aside, .reveal details, .reveal figcaption, .reveal figure,
+.reveal footer, .reveal header, .reveal hgroup, .reveal menu, .reveal nav, .reveal section {
+  display: block; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+html,
+body {
+  width: 100%;
+  height: 100%;
+  overflow: hidden; }
+
+body {
+  position: relative;
+  line-height: 1;
+  background-color: #fff;
+  color: #000; }
+
+html:-webkit-full-screen-ancestor {
+  background-color: inherit; }
+
+html:-moz-full-screen-ancestor {
+  background-color: inherit; }
+
+/*********************************************
+ * VIEW FRAGMENTS
+ *********************************************/
+.reveal .slides section .fragment {
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transition: all 0.2s ease;
+          transition: all 0.2s ease; }
+  .reveal .slides section .fragment.visible {
+    opacity: 1;
+    visibility: visible; }
+
+.reveal .slides section .fragment.grow {
+  opacity: 1;
+  visibility: visible; }
+  .reveal .slides section .fragment.grow.visible {
+    -webkit-transform: scale(1.3);
+        -ms-transform: scale(1.3);
+            transform: scale(1.3); }
+
+.reveal .slides section .fragment.shrink {
+  opacity: 1;
+  visibility: visible; }
+  .reveal .slides section .fragment.shrink.visible {
+    -webkit-transform: scale(0.7);
+        -ms-transform: scale(0.7);
+            transform: scale(0.7); }
+
+.reveal .slides section .fragment.zoom-in {
+  -webkit-transform: scale(0.1);
+      -ms-transform: scale(0.1);
+          transform: scale(0.1); }
+  .reveal .slides section .fragment.zoom-in.visible {
+    -webkit-transform: none;
+        -ms-transform: none;
+            transform: none; }
+
+.reveal .slides section .fragment.fade-out {
+  opacity: 1;
+  visibility: visible; }
+  .reveal .slides section .fragment.fade-out.visible {
+    opacity: 0;
+    visibility: hidden; }
+
+.reveal .slides section .fragment.semi-fade-out {
+  opacity: 1;
+  visibility: visible; }
+  .reveal .slides section .fragment.semi-fade-out.visible {
+    opacity: 0.5;
+    visibility: visible; }
+
+.reveal .slides section .fragment.strike {
+  opacity: 1;
+  visibility: visible; }
+  .reveal .slides section .fragment.strike.visible {
+    text-decoration: line-through; }
+
+.reveal .slides section .fragment.current-visible {
+  opacity: 0;
+  visibility: hidden; }
+  .reveal .slides section .fragment.current-visible.current-fragment {
+    opacity: 1;
+    visibility: visible; }
+
+.reveal .slides section .fragment.highlight-red,
+.reveal .slides section .fragment.highlight-current-red,
+.reveal .slides section .fragment.highlight-green,
+.reveal .slides section .fragment.highlight-current-green,
+.reveal .slides section .fragment.highlight-blue,
+.reveal .slides section .fragment.highlight-current-blue {
+  opacity: 1;
+  visibility: visible; }
+
+.reveal .slides section .fragment.highlight-red.visible {
+  color: #ff2c2d; }
+
+.reveal .slides section .fragment.highlight-green.visible {
+  color: #17ff2e; }
+
+.reveal .slides section .fragment.highlight-blue.visible {
+  color: #1b91ff; }
+
+.reveal .slides section .fragment.highlight-current-red.current-fragment {
+  color: #ff2c2d; }
+
+.reveal .slides section .fragment.highlight-current-green.current-fragment {
+  color: #17ff2e; }
+
+.reveal .slides section .fragment.highlight-current-blue.current-fragment {
+  color: #1b91ff; }
+
+/*********************************************
+ * DEFAULT ELEMENT STYLES
+ *********************************************/
+/* Fixes issue in Chrome where italic fonts did not appear when printing to PDF */
+.reveal:after {
+  content: '';
+  font-style: italic; }
+
+.reveal iframe {
+  z-index: 1; }
+
+/** Prevents layering issues in certain browser/transition combinations */
+.reveal a {
+  position: relative; }
+
+.reveal .stretch {
+  max-width: none;
+  max-height: none; }
+
+.reveal pre.stretch code {
+  height: 100%;
+  max-height: 100%;
+  box-sizing: border-box; }
+
+/*********************************************
+ * CONTROLS
+ *********************************************/
+.reveal .controls {
+  display: none;
+  position: fixed;
+  width: 110px;
+  height: 110px;
+  z-index: 30;
+  right: 10px;
+  bottom: 10px;
+  -webkit-user-select: none; }
+
+.reveal .controls button {
+  padding: 0;
+  position: absolute;
+  opacity: 0.05;
+  width: 0;
+  height: 0;
+  background-color: transparent;
+  border: 12px solid transparent;
+  -webkit-transform: scale(0.9999);
+      -ms-transform: scale(0.9999);
+          transform: scale(0.9999);
+  -webkit-transition: all 0.2s ease;
+          transition: all 0.2s ease;
+  -webkit-appearance: none;
+  -webkit-tap-highlight-color: transparent; }
+
+.reveal .controls .enabled {
+  opacity: 0.7;
+  cursor: pointer; }
+
+.reveal .controls .enabled:active {
+  margin-top: 1px; }
+
+.reveal .controls .navigate-left {
+  top: 42px;
+  border-right-width: 22px;
+  border-right-color: #000; }
+
+.reveal .controls .navigate-left.fragmented {
+  opacity: 0.3; }
+
+.reveal .controls .navigate-right {
+  left: 74px;
+  top: 42px;
+  border-left-width: 22px;
+  border-left-color: #000; }
+
+.reveal .controls .navigate-right.fragmented {
+  opacity: 0.3; }
+
+.reveal .controls .navigate-up {
+  left: 42px;
+  border-bottom-width: 22px;
+  border-bottom-color: #000; }
+
+.reveal .controls .navigate-up.fragmented {
+  opacity: 0.3; }
+
+.reveal .controls .navigate-down {
+  left: 42px;
+  top: 74px;
+  border-top-width: 22px;
+  border-top-color: #000; }
+
+.reveal .controls .navigate-down.fragmented {
+  opacity: 0.3; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  position: fixed;
+  display: none;
+  height: 3px;
+  width: 100%;
+  bottom: 0;
+  left: 0;
+  z-index: 10;
+  background-color: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress:after {
+  content: '';
+  display: block;
+  position: absolute;
+  height: 20px;
+  width: 100%;
+  top: -20px; }
+
+.reveal .progress span {
+  display: block;
+  height: 100%;
+  width: 0px;
+  background-color: #000;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * SLIDE NUMBER
+ *********************************************/
+.reveal .slide-number {
+  position: fixed;
+  display: block;
+  right: 8px;
+  bottom: 8px;
+  z-index: 31;
+  font-family: Helvetica, sans-serif;
+  font-size: 12px;
+  line-height: 1;
+  color: #fff;
+  background-color: rgba(0, 0, 0, 0.4);
+  padding: 5px; }
+
+.reveal .slide-number-delimiter {
+  margin: 0 3px; }
+
+/*********************************************
+ * SLIDES
+ *********************************************/
+.reveal {
+  position: relative;
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+  -ms-touch-action: none;
+      touch-action: none; }
+
+.reveal .slides {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  margin: auto;
+  overflow: visible;
+  z-index: 1;
+  text-align: center;
+  -webkit-perspective: 600px;
+          perspective: 600px;
+  -webkit-perspective-origin: 50% 40%;
+          perspective-origin: 50% 40%; }
+
+.reveal .slides > section {
+  -ms-perspective: 600px; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  display: none;
+  position: absolute;
+  width: 100%;
+  padding: 20px 0px;
+  z-index: 10;
+  -webkit-transform-style: preserve-3d;
+          transform-style: preserve-3d;
+  -webkit-transition: -webkit-transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), -webkit-transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: -ms-transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/* Global transition speed settings */
+.reveal[data-transition-speed="fast"] .slides section {
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
+
+.reveal[data-transition-speed="slow"] .slides section {
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
+
+/* Slide-specific transition speed overrides */
+.reveal .slides section[data-transition-speed="fast"] {
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
+
+.reveal .slides section[data-transition-speed="slow"] {
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
+
+.reveal .slides > section.stack {
+  padding-top: 0;
+  padding-bottom: 0; }
+
+.reveal .slides > section.present,
+.reveal .slides > section > section.present {
+  display: block;
+  z-index: 11;
+  opacity: 1; }
+
+.reveal.center,
+.reveal.center .slides,
+.reveal.center .slides section {
+  min-height: 0 !important; }
+
+/* Don't allow interaction with invisible slides */
+.reveal .slides > section.future,
+.reveal .slides > section > section.future,
+.reveal .slides > section.past,
+.reveal .slides > section > section.past {
+  pointer-events: none; }
+
+.reveal.overview .slides > section,
+.reveal.overview .slides > section > section {
+  pointer-events: auto; }
+
+.reveal .slides > section.past,
+.reveal .slides > section.future,
+.reveal .slides > section > section.past,
+.reveal .slides > section > section.future {
+  opacity: 0; }
+
+/*********************************************
+ * Mixins for readability of transitions
+ *********************************************/
+/*********************************************
+ * SLIDE TRANSITION
+ * Aliased 'linear' for backwards compatibility
+ *********************************************/
+.reveal.slide section {
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
+
+.reveal .slides > section[data-transition=slide].past,
+.reveal .slides > section[data-transition~=slide-out].past,
+.reveal.slide .slides > section:not([data-transition]).past {
+  -webkit-transform: translate(-150%, 0);
+      -ms-transform: translate(-150%, 0);
+          transform: translate(-150%, 0); }
+
+.reveal .slides > section[data-transition=slide].future,
+.reveal .slides > section[data-transition~=slide-in].future,
+.reveal.slide .slides > section:not([data-transition]).future {
+  -webkit-transform: translate(150%, 0);
+      -ms-transform: translate(150%, 0);
+          transform: translate(150%, 0); }
+
+.reveal .slides > section > section[data-transition=slide].past,
+.reveal .slides > section > section[data-transition~=slide-out].past,
+.reveal.slide .slides > section > section:not([data-transition]).past {
+  -webkit-transform: translate(0, -150%);
+      -ms-transform: translate(0, -150%);
+          transform: translate(0, -150%); }
+
+.reveal .slides > section > section[data-transition=slide].future,
+.reveal .slides > section > section[data-transition~=slide-in].future,
+.reveal.slide .slides > section > section:not([data-transition]).future {
+  -webkit-transform: translate(0, 150%);
+      -ms-transform: translate(0, 150%);
+          transform: translate(0, 150%); }
+
+.reveal.linear section {
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
+
+.reveal .slides > section[data-transition=linear].past,
+.reveal .slides > section[data-transition~=linear-out].past,
+.reveal.linear .slides > section:not([data-transition]).past {
+  -webkit-transform: translate(-150%, 0);
+      -ms-transform: translate(-150%, 0);
+          transform: translate(-150%, 0); }
+
+.reveal .slides > section[data-transition=linear].future,
+.reveal .slides > section[data-transition~=linear-in].future,
+.reveal.linear .slides > section:not([data-transition]).future {
+  -webkit-transform: translate(150%, 0);
+      -ms-transform: translate(150%, 0);
+          transform: translate(150%, 0); }
+
+.reveal .slides > section > section[data-transition=linear].past,
+.reveal .slides > section > section[data-transition~=linear-out].past,
+.reveal.linear .slides > section > section:not([data-transition]).past {
+  -webkit-transform: translate(0, -150%);
+      -ms-transform: translate(0, -150%);
+          transform: translate(0, -150%); }
+
+.reveal .slides > section > section[data-transition=linear].future,
+.reveal .slides > section > section[data-transition~=linear-in].future,
+.reveal.linear .slides > section > section:not([data-transition]).future {
+  -webkit-transform: translate(0, 150%);
+      -ms-transform: translate(0, 150%);
+          transform: translate(0, 150%); }
+
+/*********************************************
+ * CONVEX TRANSITION
+ * Aliased 'default' for backwards compatibility
+ *********************************************/
+.reveal .slides > section[data-transition=default].past,
+.reveal .slides > section[data-transition~=default-out].past,
+.reveal.default .slides > section:not([data-transition]).past {
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
+
+.reveal .slides > section[data-transition=default].future,
+.reveal .slides > section[data-transition~=default-in].future,
+.reveal.default .slides > section:not([data-transition]).future {
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
+
+.reveal .slides > section > section[data-transition=default].past,
+.reveal .slides > section > section[data-transition~=default-out].past,
+.reveal.default .slides > section > section:not([data-transition]).past {
+  -webkit-transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0);
+          transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); }
+
+.reveal .slides > section > section[data-transition=default].future,
+.reveal .slides > section > section[data-transition~=default-in].future,
+.reveal.default .slides > section > section:not([data-transition]).future {
+  -webkit-transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
+          transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); }
+
+.reveal .slides > section[data-transition=convex].past,
+.reveal .slides > section[data-transition~=convex-out].past,
+.reveal.convex .slides > section:not([data-transition]).past {
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
+
+.reveal .slides > section[data-transition=convex].future,
+.reveal .slides > section[data-transition~=convex-in].future,
+.reveal.convex .slides > section:not([data-transition]).future {
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
+
+.reveal .slides > section > section[data-transition=convex].past,
+.reveal .slides > section > section[data-transition~=convex-out].past,
+.reveal.convex .slides > section > section:not([data-transition]).past {
+  -webkit-transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0);
+          transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); }
+
+.reveal .slides > section > section[data-transition=convex].future,
+.reveal .slides > section > section[data-transition~=convex-in].future,
+.reveal.convex .slides > section > section:not([data-transition]).future {
+  -webkit-transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
+          transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); }
+
+/*********************************************
+ * CONCAVE TRANSITION
+ *********************************************/
+.reveal .slides > section[data-transition=concave].past,
+.reveal .slides > section[data-transition~=concave-out].past,
+.reveal.concave .slides > section:not([data-transition]).past {
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); }
+
+.reveal .slides > section[data-transition=concave].future,
+.reveal .slides > section[data-transition~=concave-in].future,
+.reveal.concave .slides > section:not([data-transition]).future {
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); }
+
+.reveal .slides > section > section[data-transition=concave].past,
+.reveal .slides > section > section[data-transition~=concave-out].past,
+.reveal.concave .slides > section > section:not([data-transition]).past {
+  -webkit-transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0);
+          transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0); }
+
+.reveal .slides > section > section[data-transition=concave].future,
+.reveal .slides > section > section[data-transition~=concave-in].future,
+.reveal.concave .slides > section > section:not([data-transition]).future {
+  -webkit-transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0);
+          transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0); }
+
+/*********************************************
+ * ZOOM TRANSITION
+ *********************************************/
+.reveal .slides section[data-transition=zoom],
+.reveal.zoom .slides section:not([data-transition]) {
+  -webkit-transition-timing-function: ease;
+          transition-timing-function: ease; }
+
+.reveal .slides > section[data-transition=zoom].past,
+.reveal .slides > section[data-transition~=zoom-out].past,
+.reveal.zoom .slides > section:not([data-transition]).past {
+  visibility: hidden;
+  -webkit-transform: scale(16);
+      -ms-transform: scale(16);
+          transform: scale(16); }
+
+.reveal .slides > section[data-transition=zoom].future,
+.reveal .slides > section[data-transition~=zoom-in].future,
+.reveal.zoom .slides > section:not([data-transition]).future {
+  visibility: hidden;
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
+
+.reveal .slides > section > section[data-transition=zoom].past,
+.reveal .slides > section > section[data-transition~=zoom-out].past,
+.reveal.zoom .slides > section > section:not([data-transition]).past {
+  -webkit-transform: translate(0, -150%);
+      -ms-transform: translate(0, -150%);
+          transform: translate(0, -150%); }
+
+.reveal .slides > section > section[data-transition=zoom].future,
+.reveal .slides > section > section[data-transition~=zoom-in].future,
+.reveal.zoom .slides > section > section:not([data-transition]).future {
+  -webkit-transform: translate(0, 150%);
+      -ms-transform: translate(0, 150%);
+          transform: translate(0, 150%); }
+
+/*********************************************
+ * CUBE TRANSITION
+ *********************************************/
+.reveal.cube .slides {
+  -webkit-perspective: 1300px;
+          perspective: 1300px; }
+
+.reveal.cube .slides section {
+  padding: 30px;
+  min-height: 700px;
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden;
+  box-sizing: border-box; }
+
+.reveal.center.cube .slides section {
+  min-height: 0; }
+
+.reveal.cube .slides section:not(.stack):before {
+  content: '';
+  position: absolute;
+  display: block;
+  width: 100%;
+  height: 100%;
+  left: 0;
+  top: 0;
+  background: rgba(0, 0, 0, 0.1);
+  border-radius: 4px;
+  -webkit-transform: translateZ(-20px);
+          transform: translateZ(-20px); }
+
+.reveal.cube .slides section:not(.stack):after {
+  content: '';
+  position: absolute;
+  display: block;
+  width: 90%;
+  height: 30px;
+  left: 5%;
+  bottom: 0;
+  background: none;
+  z-index: 1;
+  border-radius: 4px;
+  box-shadow: 0px 95px 25px rgba(0, 0, 0, 0.2);
+  -webkit-transform: translateZ(-90px) rotateX(65deg);
+          transform: translateZ(-90px) rotateX(65deg); }
+
+.reveal.cube .slides > section.stack {
+  padding: 0;
+  background: none; }
+
+.reveal.cube .slides > section.past {
+  -webkit-transform-origin: 100% 0%;
+      -ms-transform-origin: 100% 0%;
+          transform-origin: 100% 0%;
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg); }
+
+.reveal.cube .slides > section.future {
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg);
+          transform: translate3d(100%, 0, 0) rotateY(90deg); }
+
+.reveal.cube .slides > section > section.past {
+  -webkit-transform-origin: 0% 100%;
+      -ms-transform-origin: 0% 100%;
+          transform-origin: 0% 100%;
+  -webkit-transform: translate3d(0, -100%, 0) rotateX(90deg);
+          transform: translate3d(0, -100%, 0) rotateX(90deg); }
+
+.reveal.cube .slides > section > section.future {
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(0, 100%, 0) rotateX(-90deg);
+          transform: translate3d(0, 100%, 0) rotateX(-90deg); }
+
+/*********************************************
+ * PAGE TRANSITION
+ *********************************************/
+.reveal.page .slides {
+  -webkit-perspective-origin: 0% 50%;
+          perspective-origin: 0% 50%;
+  -webkit-perspective: 3000px;
+          perspective: 3000px; }
+
+.reveal.page .slides section {
+  padding: 30px;
+  min-height: 700px;
+  box-sizing: border-box; }
+
+.reveal.page .slides section.past {
+  z-index: 12; }
+
+.reveal.page .slides section:not(.stack):before {
+  content: '';
+  position: absolute;
+  display: block;
+  width: 100%;
+  height: 100%;
+  left: 0;
+  top: 0;
+  background: rgba(0, 0, 0, 0.1);
+  -webkit-transform: translateZ(-20px);
+          transform: translateZ(-20px); }
+
+.reveal.page .slides section:not(.stack):after {
+  content: '';
+  position: absolute;
+  display: block;
+  width: 90%;
+  height: 30px;
+  left: 5%;
+  bottom: 0;
+  background: none;
+  z-index: 1;
+  border-radius: 4px;
+  box-shadow: 0px 95px 25px rgba(0, 0, 0, 0.2);
+  -webkit-transform: translateZ(-90px) rotateX(65deg); }
+
+.reveal.page .slides > section.stack {
+  padding: 0;
+  background: none; }
+
+.reveal.page .slides > section.past {
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(-40%, 0, 0) rotateY(-80deg);
+          transform: translate3d(-40%, 0, 0) rotateY(-80deg); }
+
+.reveal.page .slides > section.future {
+  -webkit-transform-origin: 100% 0%;
+      -ms-transform-origin: 100% 0%;
+          transform-origin: 100% 0%;
+  -webkit-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0); }
+
+.reveal.page .slides > section > section.past {
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(0, -40%, 0) rotateX(80deg);
+          transform: translate3d(0, -40%, 0) rotateX(80deg); }
+
+.reveal.page .slides > section > section.future {
+  -webkit-transform-origin: 0% 100%;
+      -ms-transform-origin: 0% 100%;
+          transform-origin: 0% 100%;
+  -webkit-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0); }
+
+/*********************************************
+ * FADE TRANSITION
+ *********************************************/
+.reveal .slides section[data-transition=fade],
+.reveal.fade .slides section:not([data-transition]),
+.reveal.fade .slides > section > section:not([data-transition]) {
+  -webkit-transform: none;
+      -ms-transform: none;
+          transform: none;
+  -webkit-transition: opacity 0.5s;
+          transition: opacity 0.5s; }
+
+.reveal.fade.overview .slides section,
+.reveal.fade.overview .slides > section > section {
+  -webkit-transition: none;
+          transition: none; }
+
+/*********************************************
+ * NO TRANSITION
+ *********************************************/
+.reveal .slides section[data-transition=none],
+.reveal.none .slides section:not([data-transition]) {
+  -webkit-transform: none;
+      -ms-transform: none;
+          transform: none;
+  -webkit-transition: none;
+          transition: none; }
+
+/*********************************************
+ * PAUSED MODE
+ *********************************************/
+.reveal .pause-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: black;
+  visibility: hidden;
+  opacity: 0;
+  z-index: 100;
+  -webkit-transition: all 1s ease;
+          transition: all 1s ease; }
+
+.reveal.paused .pause-overlay {
+  visibility: visible;
+  opacity: 1; }
+
+/*********************************************
+ * FALLBACK
+ *********************************************/
+.no-transforms {
+  overflow-y: auto; }
+
+.no-transforms .reveal .slides {
+  position: relative;
+  width: 80%;
+  height: auto !important;
+  top: 0;
+  left: 50%;
+  margin: 0;
+  text-align: center; }
+
+.no-transforms .reveal .controls,
+.no-transforms .reveal .progress {
+  display: none !important; }
+
+.no-transforms .reveal .slides section {
+  display: block !important;
+  opacity: 1 !important;
+  position: relative !important;
+  height: auto;
+  min-height: 0;
+  top: 0;
+  left: -50%;
+  margin: 70px 0;
+  -webkit-transform: none;
+      -ms-transform: none;
+          transform: none; }
+
+.no-transforms .reveal .slides section section {
+  left: 0; }
+
+.reveal .no-transition,
+.reveal .no-transition * {
+  -webkit-transition: none !important;
+          transition: none !important; }
+
+/*********************************************
+ * PER-SLIDE BACKGROUNDS
+ *********************************************/
+.reveal .backgrounds {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  top: 0;
+  left: 0;
+  -webkit-perspective: 600px;
+          perspective: 600px; }
+
+.reveal .slide-background {
+  display: none;
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  opacity: 0;
+  visibility: hidden;
+  background-color: transparent;
+  background-position: 50% 50%;
+  background-repeat: no-repeat;
+  background-size: cover;
+  -webkit-transition: all 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: all 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+.reveal .slide-background.stack {
+  display: block; }
+
+.reveal .slide-background.present {
+  opacity: 1;
+  visibility: visible; }
+
+.print-pdf .reveal .slide-background {
+  opacity: 1 !important;
+  visibility: visible !important; }
+
+/* Video backgrounds */
+.reveal .slide-background video {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  max-width: none;
+  max-height: none;
+  top: 0;
+  left: 0; }
+
+/* Immediate transition style */
+.reveal[data-background-transition=none] > .backgrounds .slide-background,
+.reveal > .backgrounds .slide-background[data-background-transition=none] {
+  -webkit-transition: none;
+          transition: none; }
+
+/* Slide */
+.reveal[data-background-transition=slide] > .backgrounds .slide-background,
+.reveal > .backgrounds .slide-background[data-background-transition=slide] {
+  opacity: 1;
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
+
+.reveal[data-background-transition=slide] > .backgrounds .slide-background.past,
+.reveal > .backgrounds .slide-background.past[data-background-transition=slide] {
+  -webkit-transform: translate(-100%, 0);
+      -ms-transform: translate(-100%, 0);
+          transform: translate(-100%, 0); }
+
+.reveal[data-background-transition=slide] > .backgrounds .slide-background.future,
+.reveal > .backgrounds .slide-background.future[data-background-transition=slide] {
+  -webkit-transform: translate(100%, 0);
+      -ms-transform: translate(100%, 0);
+          transform: translate(100%, 0); }
+
+.reveal[data-background-transition=slide] > .backgrounds .slide-background > .slide-background.past,
+.reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=slide] {
+  -webkit-transform: translate(0, -100%);
+      -ms-transform: translate(0, -100%);
+          transform: translate(0, -100%); }
+
+.reveal[data-background-transition=slide] > .backgrounds .slide-background > .slide-background.future,
+.reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=slide] {
+  -webkit-transform: translate(0, 100%);
+      -ms-transform: translate(0, 100%);
+          transform: translate(0, 100%); }
+
+/* Convex */
+.reveal[data-background-transition=convex] > .backgrounds .slide-background.past,
+.reveal > .backgrounds .slide-background.past[data-background-transition=convex] {
+  opacity: 0;
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
+
+.reveal[data-background-transition=convex] > .backgrounds .slide-background.future,
+.reveal > .backgrounds .slide-background.future[data-background-transition=convex] {
+  opacity: 0;
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
+
+.reveal[data-background-transition=convex] > .backgrounds .slide-background > .slide-background.past,
+.reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=convex] {
+  opacity: 0;
+  -webkit-transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0);
+          transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0); }
+
+.reveal[data-background-transition=convex] > .backgrounds .slide-background > .slide-background.future,
+.reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=convex] {
+  opacity: 0;
+  -webkit-transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0);
+          transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0); }
+
+/* Concave */
+.reveal[data-background-transition=concave] > .backgrounds .slide-background.past,
+.reveal > .backgrounds .slide-background.past[data-background-transition=concave] {
+  opacity: 0;
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); }
+
+.reveal[data-background-transition=concave] > .backgrounds .slide-background.future,
+.reveal > .backgrounds .slide-background.future[data-background-transition=concave] {
+  opacity: 0;
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); }
+
+.reveal[data-background-transition=concave] > .backgrounds .slide-background > .slide-background.past,
+.reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=concave] {
+  opacity: 0;
+  -webkit-transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0);
+          transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0); }
+
+.reveal[data-background-transition=concave] > .backgrounds .slide-background > .slide-background.future,
+.reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=concave] {
+  opacity: 0;
+  -webkit-transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0);
+          transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0); }
+
+/* Zoom */
+.reveal[data-background-transition=zoom] > .backgrounds .slide-background,
+.reveal > .backgrounds .slide-background[data-background-transition=zoom] {
+  -webkit-transition-timing-function: ease;
+          transition-timing-function: ease; }
+
+.reveal[data-background-transition=zoom] > .backgrounds .slide-background.past,
+.reveal > .backgrounds .slide-background.past[data-background-transition=zoom] {
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transform: scale(16);
+      -ms-transform: scale(16);
+          transform: scale(16); }
+
+.reveal[data-background-transition=zoom] > .backgrounds .slide-background.future,
+.reveal > .backgrounds .slide-background.future[data-background-transition=zoom] {
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
+
+.reveal[data-background-transition=zoom] > .backgrounds .slide-background > .slide-background.past,
+.reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=zoom] {
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transform: scale(16);
+      -ms-transform: scale(16);
+          transform: scale(16); }
+
+.reveal[data-background-transition=zoom] > .backgrounds .slide-background > .slide-background.future,
+.reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=zoom] {
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
+
+/* Global transition speed settings */
+.reveal[data-transition-speed="fast"] > .backgrounds .slide-background {
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
+
+.reveal[data-transition-speed="slow"] > .backgrounds .slide-background {
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
+
+/*********************************************
+ * OVERVIEW
+ *********************************************/
+.reveal.overview {
+  -webkit-perspective-origin: 50% 50%;
+          perspective-origin: 50% 50%;
+  -webkit-perspective: 700px;
+          perspective: 700px; }
+  .reveal.overview .slides section {
+    height: 700px;
+    opacity: 1 !important;
+    overflow: hidden;
+    visibility: visible !important;
+    cursor: pointer;
+    box-sizing: border-box; }
+  .reveal.overview .slides section:hover,
+  .reveal.overview .slides section.present {
+    outline: 10px solid rgba(150, 150, 150, 0.4);
+    outline-offset: 10px; }
+  .reveal.overview .slides section .fragment {
+    opacity: 1;
+    -webkit-transition: none;
+            transition: none; }
+  .reveal.overview .slides section:after,
+  .reveal.overview .slides section:before {
+    display: none !important; }
+  .reveal.overview .slides > section.stack {
+    padding: 0;
+    top: 0 !important;
+    background: none;
+    outline: none;
+    overflow: visible; }
+  .reveal.overview .backgrounds {
+    -webkit-perspective: inherit;
+            perspective: inherit; }
+  .reveal.overview .backgrounds .slide-background {
+    opacity: 1;
+    visibility: visible;
+    outline: 10px solid rgba(150, 150, 150, 0.1);
+    outline-offset: 10px; }
+
+.reveal.overview .slides section,
+.reveal.overview-deactivating .slides section {
+  -webkit-transition: none;
+          transition: none; }
+
+.reveal.overview .backgrounds .slide-background,
+.reveal.overview-deactivating .backgrounds .slide-background {
+  -webkit-transition: none;
+          transition: none; }
+
+.reveal.overview-animated .slides {
+  -webkit-transition: -webkit-transform 0.4s ease;
+          transition: transform 0.4s ease; }
+
+/*********************************************
+ * RTL SUPPORT
+ *********************************************/
+.reveal.rtl .slides,
+.reveal.rtl .slides h1,
+.reveal.rtl .slides h2,
+.reveal.rtl .slides h3,
+.reveal.rtl .slides h4,
+.reveal.rtl .slides h5,
+.reveal.rtl .slides h6 {
+  direction: rtl;
+  font-family: sans-serif; }
+
+.reveal.rtl pre,
+.reveal.rtl code {
+  direction: ltr; }
+
+.reveal.rtl ol,
+.reveal.rtl ul {
+  text-align: right; }
+
+.reveal.rtl .progress span {
+  float: right; }
+
+/*********************************************
+ * PARALLAX BACKGROUND
+ *********************************************/
+.reveal.has-parallax-background .backgrounds {
+  -webkit-transition: all 0.8s ease;
+          transition: all 0.8s ease; }
+
+/* Global transition speed settings */
+.reveal.has-parallax-background[data-transition-speed="fast"] .backgrounds {
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
+
+.reveal.has-parallax-background[data-transition-speed="slow"] .backgrounds {
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
+
+/*********************************************
+ * LINK PREVIEW OVERLAY
+ *********************************************/
+.reveal .overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  z-index: 1000;
+  background: rgba(0, 0, 0, 0.9);
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transition: all 0.3s ease;
+          transition: all 0.3s ease; }
+
+.reveal .overlay.visible {
+  opacity: 1;
+  visibility: visible; }
+
+.reveal .overlay .spinner {
+  position: absolute;
+  display: block;
+  top: 50%;
+  left: 50%;
+  width: 32px;
+  height: 32px;
+  margin: -16px 0 0 -16px;
+  z-index: 10;
+  background-image: url(data:image/gif;base64,R0lGODlhIAAgAPMAAJmZmf%2F%2F%2F6%2Bvr8nJybW1tcDAwOjo6Nvb26ioqKOjo7Ozs%2FLy8vz8%2FAAAAAAAAAAAACH%2FC05FVFNDQVBFMi4wAwEAAAAh%2FhpDcmVhdGVkIHdpdGggYWpheGxvYWQuaW5mbwAh%2BQQJCgAAACwAAAAAIAAgAAAE5xDISWlhperN52JLhSSdRgwVo1ICQZRUsiwHpTJT4iowNS8vyW2icCF6k8HMMBkCEDskxTBDAZwuAkkqIfxIQyhBQBFvAQSDITM5VDW6XNE4KagNh6Bgwe60smQUB3d4Rz1ZBApnFASDd0hihh12BkE9kjAJVlycXIg7CQIFA6SlnJ87paqbSKiKoqusnbMdmDC2tXQlkUhziYtyWTxIfy6BE8WJt5YJvpJivxNaGmLHT0VnOgSYf0dZXS7APdpB [...]
+  visibility: visible;
+  opacity: 0.6;
+  -webkit-transition: all 0.3s ease;
+          transition: all 0.3s ease; }
+
+.reveal .overlay header {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 40px;
+  z-index: 2;
+  border-bottom: 1px solid #222; }
+
+.reveal .overlay header a {
+  display: inline-block;
+  width: 40px;
+  height: 40px;
+  padding: 0 10px;
+  float: right;
+  opacity: 0.6;
+  box-sizing: border-box; }
+
+.reveal .overlay header a:hover {
+  opacity: 1; }
+
+.reveal .overlay header a .icon {
+  display: inline-block;
+  width: 20px;
+  height: 20px;
+  background-position: 50% 50%;
+  background-size: 100%;
+  background-repeat: no-repeat; }
+
+.reveal .overlay header a.close .icon {
+  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAABkklEQVRYR8WX4VHDMAxG6wnoJrABZQPYBCaBTWAD2g1gE5gg6OOsXuxIlr40d81dfrSJ9V4c2VLK7spHuTJ/5wpM07QXuXc5X0opX2tEJcadjHuV80li/FgxTIEK/5QBCICBD6xEhSMGHgQPgBgLiYVAB1dpSqKDawxTohFw4JSEA3clzgIBPCURwE2JucBR7rhPJJv5OpJwDX+SfDjgx1wACQeJG1aChP9K/IMmdZ8DtESV1WyP3Bt4MwM6sj4NMxMYiqUWHQu4KYA/SYkIjOsm3BXYWMKFDwU2khjCQ4ELJUJ4SmClRArOCmSXGuKma0fYD5CbzHxFpCSGAhfAVSSUGDUk2BWZaff2g6GE15BsBQ9nwmpIGDiyHQddwNTMKkbZaf9fajXQca [...]
+
+.reveal .overlay header a.external .icon {
+  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAcElEQVRYR+2WSQoAIQwEzf8f7XiOMkUQxUPlGkM3hVmiQfQR9GYnH1SsAQlI4DiBqkCMoNb9y2e90IAEJPAcgdznU9+engMaeJ7Azh5Y1U67gAho4DqBqmB1buAf0MB1AlVBek83ZPkmJMGc1wAR+AAqod/B97TRpQAAAABJRU5ErkJggg==); }
+
+.reveal .overlay .viewport {
+  position: absolute;
+  top: 40px;
+  right: 0;
+  bottom: 0;
+  left: 0; }
+
+.reveal .overlay.overlay-preview .viewport iframe {
+  width: 100%;
+  height: 100%;
+  max-width: 100%;
+  max-height: 100%;
+  border: 0;
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transition: all 0.3s ease;
+          transition: all 0.3s ease; }
+
+.reveal .overlay.overlay-preview.loaded .viewport iframe {
+  opacity: 1;
+  visibility: visible; }
+
+.reveal .overlay.overlay-preview.loaded .spinner {
+  opacity: 0;
+  visibility: hidden;
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
+
+.reveal .overlay.overlay-help .viewport {
+  overflow: auto;
+  color: #fff; }
+
+.reveal .overlay.overlay-help .viewport .viewport-inner {
+  width: 600px;
+  margin: 0 auto;
+  padding: 60px;
+  text-align: center;
+  letter-spacing: normal; }
+
+.reveal .overlay.overlay-help .viewport .viewport-inner .title {
+  font-size: 20px; }
+
+.reveal .overlay.overlay-help .viewport .viewport-inner table {
+  border: 1px solid #fff;
+  border-collapse: collapse;
+  font-size: 14px; }
+
+.reveal .overlay.overlay-help .viewport .viewport-inner table th,
+.reveal .overlay.overlay-help .viewport .viewport-inner table td {
+  width: 200px;
+  padding: 10px;
+  border: 1px solid #fff;
+  vertical-align: middle; }
+
+.reveal .overlay.overlay-help .viewport .viewport-inner table th {
+  padding-top: 20px;
+  padding-bottom: 20px; }
+
+/*********************************************
+ * PLAYBACK COMPONENT
+ *********************************************/
+.reveal .playback {
+  position: fixed;
+  left: 15px;
+  bottom: 20px;
+  z-index: 30;
+  cursor: pointer;
+  -webkit-transition: all 400ms ease;
+          transition: all 400ms ease; }
+
+.reveal.overview .playback {
+  opacity: 0;
+  visibility: hidden; }
+
+/*********************************************
+ * ROLLING LINKS
+ *********************************************/
+.reveal .roll {
+  display: inline-block;
+  line-height: 1.2;
+  overflow: hidden;
+  vertical-align: top;
+  -webkit-perspective: 400px;
+          perspective: 400px;
+  -webkit-perspective-origin: 50% 50%;
+          perspective-origin: 50% 50%; }
+
+.reveal .roll:hover {
+  background: none;
+  text-shadow: none; }
+
+.reveal .roll span {
+  display: block;
+  position: relative;
+  padding: 0 2px;
+  pointer-events: none;
+  -webkit-transition: all 400ms ease;
+          transition: all 400ms ease;
+  -webkit-transform-origin: 50% 0%;
+      -ms-transform-origin: 50% 0%;
+          transform-origin: 50% 0%;
+  -webkit-transform-style: preserve-3d;
+          transform-style: preserve-3d;
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
+
+.reveal .roll:hover span {
+  background: rgba(0, 0, 0, 0.5);
+  -webkit-transform: translate3d(0px, 0px, -45px) rotateX(90deg);
+          transform: translate3d(0px, 0px, -45px) rotateX(90deg); }
+
+.reveal .roll span:after {
+  content: attr(data-title);
+  display: block;
+  position: absolute;
+  left: 0;
+  top: 0;
+  padding: 0 2px;
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden;
+  -webkit-transform-origin: 50% 0%;
+      -ms-transform-origin: 50% 0%;
+          transform-origin: 50% 0%;
+  -webkit-transform: translate3d(0px, 110%, 0px) rotateX(-90deg);
+          transform: translate3d(0px, 110%, 0px) rotateX(-90deg); }
+
+/*********************************************
+ * SPEAKER NOTES
+ *********************************************/
+.reveal aside.notes {
+  display: none; }
+
+.reveal .speaker-notes {
+  display: none;
+  position: absolute;
+  width: 70%;
+  max-height: 15%;
+  left: 15%;
+  bottom: 26px;
+  padding: 10px;
+  z-index: 1;
+  font-size: 18px;
+  line-height: 1.4;
+  color: #fff;
+  background-color: rgba(0, 0, 0, 0.5);
+  overflow: auto;
+  box-sizing: border-box;
+  text-align: left;
+  font-family: Helvetica, sans-serif;
+  -webkit-overflow-scrolling: touch; }
+
+.reveal .speaker-notes.visible:not(:empty) {
+  display: block; }
+
+ at media screen and (max-width: 1024px) {
+  .reveal .speaker-notes {
+    font-size: 14px; } }
+
+ at media screen and (max-width: 600px) {
+  .reveal .speaker-notes {
+    width: 90%;
+    left: 5%; } }
+
+/*********************************************
+ * ZOOM PLUGIN
+ *********************************************/
+.zoomed .reveal *,
+.zoomed .reveal *:before,
+.zoomed .reveal *:after {
+  -webkit-backface-visibility: visible !important;
+          backface-visibility: visible !important; }
+
+.zoomed .reveal .progress,
+.zoomed .reveal .controls {
+  opacity: 0; }
+
+.zoomed .reveal .roll span {
+  background: none; }
+
+.zoomed .reveal .roll span:after {
+  visibility: hidden; }
diff --git a/2017-08-11-DebConf17/css/reveal.scss b/2017-08-11-DebConf17/css/reveal.scss
new file mode 100644
index 0000000..eb600ac
--- /dev/null
+++ b/2017-08-11-DebConf17/css/reveal.scss
@@ -0,0 +1,1379 @@
+/*!
+ * reveal.js
+ * http://lab.hakim.se/reveal-js
+ * MIT licensed
+ *
+ * Copyright (C) 2016 Hakim El Hattab, http://hakim.se
+ */
+
+
+/*********************************************
+ * RESET STYLES
+ *********************************************/
+
+html, body, .reveal div, .reveal span, .reveal applet, .reveal object, .reveal iframe,
+.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6, .reveal p, .reveal blockquote, .reveal pre,
+.reveal a, .reveal abbr, .reveal acronym, .reveal address, .reveal big, .reveal cite, .reveal code,
+.reveal del, .reveal dfn, .reveal em, .reveal img, .reveal ins, .reveal kbd, .reveal q, .reveal s, .reveal samp,
+.reveal small, .reveal strike, .reveal strong, .reveal sub, .reveal sup, .reveal tt, .reveal var,
+.reveal b, .reveal u, .reveal center,
+.reveal dl, .reveal dt, .reveal dd, .reveal ol, .reveal ul, .reveal li,
+.reveal fieldset, .reveal form, .reveal label, .reveal legend,
+.reveal table, .reveal caption, .reveal tbody, .reveal tfoot, .reveal thead, .reveal tr, .reveal th, .reveal td,
+.reveal article, .reveal aside, .reveal canvas, .reveal details, .reveal embed,
+.reveal figure, .reveal figcaption, .reveal footer, .reveal header, .reveal hgroup,
+.reveal menu, .reveal nav, .reveal output, .reveal ruby, .reveal section, .reveal summary,
+.reveal time, .reveal mark, .reveal audio, video {
+	margin: 0;
+	padding: 0;
+	border: 0;
+	font-size: 100%;
+	font: inherit;
+	vertical-align: baseline;
+}
+
+.reveal article, .reveal aside, .reveal details, .reveal figcaption, .reveal figure,
+.reveal footer, .reveal header, .reveal hgroup, .reveal menu, .reveal nav, .reveal section {
+	display: block;
+}
+
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+
+html,
+body {
+	width: 100%;
+	height: 100%;
+	overflow: hidden;
+}
+
+body {
+	position: relative;
+	line-height: 1;
+
+	background-color: #fff;
+	color: #000;
+}
+
+// Ensures that the main background color matches the
+// theme in fullscreen mode
+html:-webkit-full-screen-ancestor {
+	background-color: inherit;
+}
+html:-moz-full-screen-ancestor {
+	background-color: inherit;
+}
+
+
+/*********************************************
+ * VIEW FRAGMENTS
+ *********************************************/
+
+.reveal .slides section .fragment {
+	opacity: 0;
+	visibility: hidden;
+	transition: all .2s ease;
+
+	&.visible {
+		opacity: 1;
+		visibility: visible;
+	}
+}
+
+.reveal .slides section .fragment.grow {
+	opacity: 1;
+	visibility: visible;
+
+	&.visible {
+		transform: scale( 1.3 );
+	}
+}
+
+.reveal .slides section .fragment.shrink {
+	opacity: 1;
+	visibility: visible;
+
+	&.visible {
+		transform: scale( 0.7 );
+	}
+}
+
+.reveal .slides section .fragment.zoom-in {
+	transform: scale( 0.1 );
+
+	&.visible {
+		transform: none;
+	}
+}
+
+.reveal .slides section .fragment.fade-out {
+	opacity: 1;
+	visibility: visible;
+
+	&.visible {
+		opacity: 0;
+		visibility: hidden;
+	}
+}
+
+.reveal .slides section .fragment.semi-fade-out {
+	opacity: 1;
+	visibility: visible;
+
+	&.visible {
+		opacity: 0.5;
+		visibility: visible;
+	}
+}
+
+.reveal .slides section .fragment.strike {
+	opacity: 1;
+	visibility: visible;
+
+	&.visible {
+		text-decoration: line-through;
+	}
+}
+
+.reveal .slides section .fragment.current-visible {
+	opacity: 0;
+	visibility: hidden;
+
+	&.current-fragment {
+		opacity: 1;
+		visibility: visible;
+	}
+}
+
+.reveal .slides section .fragment.highlight-red,
+.reveal .slides section .fragment.highlight-current-red,
+.reveal .slides section .fragment.highlight-green,
+.reveal .slides section .fragment.highlight-current-green,
+.reveal .slides section .fragment.highlight-blue,
+.reveal .slides section .fragment.highlight-current-blue {
+	opacity: 1;
+	visibility: visible;
+}
+	.reveal .slides section .fragment.highlight-red.visible {
+		color: #ff2c2d
+	}
+	.reveal .slides section .fragment.highlight-green.visible {
+		color: #17ff2e;
+	}
+	.reveal .slides section .fragment.highlight-blue.visible {
+		color: #1b91ff;
+	}
+
+.reveal .slides section .fragment.highlight-current-red.current-fragment {
+	color: #ff2c2d
+}
+.reveal .slides section .fragment.highlight-current-green.current-fragment {
+	color: #17ff2e;
+}
+.reveal .slides section .fragment.highlight-current-blue.current-fragment {
+	color: #1b91ff;
+}
+
+
+/*********************************************
+ * DEFAULT ELEMENT STYLES
+ *********************************************/
+
+/* Fixes issue in Chrome where italic fonts did not appear when printing to PDF */
+.reveal:after {
+  content: '';
+  font-style: italic;
+}
+
+.reveal iframe {
+	z-index: 1;
+}
+
+/** Prevents layering issues in certain browser/transition combinations */
+.reveal a {
+	position: relative;
+}
+
+.reveal .stretch {
+	max-width: none;
+	max-height: none;
+}
+
+.reveal pre.stretch code {
+	height: 100%;
+	max-height: 100%;
+	box-sizing: border-box;
+}
+
+
+/*********************************************
+ * CONTROLS
+ *********************************************/
+
+.reveal .controls {
+	display: none;
+	position: fixed;
+	width: 110px;
+	height: 110px;
+	z-index: 30;
+	right: 10px;
+	bottom: 10px;
+
+	-webkit-user-select: none;
+}
+
+.reveal .controls button {
+	padding: 0;
+	position: absolute;
+	opacity: 0.05;
+	width: 0;
+	height: 0;
+	background-color: transparent;
+	border: 12px solid transparent;
+	transform: scale(.9999);
+	transition: all 0.2s ease;
+	-webkit-appearance: none;
+	-webkit-tap-highlight-color: rgba( 0, 0, 0, 0 );
+}
+
+.reveal .controls .enabled {
+	opacity: 0.7;
+	cursor: pointer;
+}
+
+.reveal .controls .enabled:active {
+	margin-top: 1px;
+}
+
+	.reveal .controls .navigate-left {
+		top: 42px;
+
+		border-right-width: 22px;
+		border-right-color: #000;
+	}
+		.reveal .controls .navigate-left.fragmented {
+			opacity: 0.3;
+		}
+
+	.reveal .controls .navigate-right {
+		left: 74px;
+		top: 42px;
+
+		border-left-width: 22px;
+		border-left-color: #000;
+	}
+		.reveal .controls .navigate-right.fragmented {
+			opacity: 0.3;
+		}
+
+	.reveal .controls .navigate-up {
+		left: 42px;
+
+		border-bottom-width: 22px;
+		border-bottom-color: #000;
+	}
+		.reveal .controls .navigate-up.fragmented {
+			opacity: 0.3;
+		}
+
+	.reveal .controls .navigate-down {
+		left: 42px;
+		top: 74px;
+
+		border-top-width: 22px;
+		border-top-color: #000;
+	}
+		.reveal .controls .navigate-down.fragmented {
+			opacity: 0.3;
+		}
+
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+
+.reveal .progress {
+	position: fixed;
+	display: none;
+	height: 3px;
+	width: 100%;
+	bottom: 0;
+	left: 0;
+	z-index: 10;
+
+	background-color: rgba( 0, 0, 0, 0.2 );
+}
+	.reveal .progress:after {
+		content: '';
+		display: block;
+		position: absolute;
+		height: 20px;
+		width: 100%;
+		top: -20px;
+	}
+	.reveal .progress span {
+		display: block;
+		height: 100%;
+		width: 0px;
+
+		background-color: #000;
+		transition: width 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+	}
+
+/*********************************************
+ * SLIDE NUMBER
+ *********************************************/
+
+.reveal .slide-number {
+	position: fixed;
+	display: block;
+	right: 8px;
+	bottom: 8px;
+	z-index: 31;
+	font-family: Helvetica, sans-serif;
+	font-size: 12px;
+	line-height: 1;
+	color: #fff;
+	background-color: rgba( 0, 0, 0, 0.4 );
+	padding: 5px;
+}
+
+.reveal .slide-number-delimiter {
+	margin: 0 3px;
+}
+
+/*********************************************
+ * SLIDES
+ *********************************************/
+
+.reveal {
+	position: relative;
+	width: 100%;
+	height: 100%;
+	overflow: hidden;
+	touch-action: none;
+}
+
+.reveal .slides {
+	position: absolute;
+	width: 100%;
+	height: 100%;
+	top: 0;
+	right: 0;
+	bottom: 0;
+	left: 0;
+	margin: auto;
+
+	overflow: visible;
+	z-index: 1;
+	text-align: center;
+	perspective: 600px;
+	perspective-origin: 50% 40%;
+}
+
+.reveal .slides>section {
+	-ms-perspective: 600px;
+}
+
+.reveal .slides>section,
+.reveal .slides>section>section {
+	display: none;
+	position: absolute;
+	width: 100%;
+	padding: 20px 0px;
+
+	z-index: 10;
+	transform-style: preserve-3d;
+	transition: transform-origin 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
+				transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
+				visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
+				opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+}
+
+/* Global transition speed settings */
+.reveal[data-transition-speed="fast"] .slides section {
+	transition-duration: 400ms;
+}
+.reveal[data-transition-speed="slow"] .slides section {
+	transition-duration: 1200ms;
+}
+
+/* Slide-specific transition speed overrides */
+.reveal .slides section[data-transition-speed="fast"] {
+	transition-duration: 400ms;
+}
+.reveal .slides section[data-transition-speed="slow"] {
+	transition-duration: 1200ms;
+}
+
+.reveal .slides>section.stack {
+	padding-top: 0;
+	padding-bottom: 0;
+}
+
+.reveal .slides>section.present,
+.reveal .slides>section>section.present {
+	display: block;
+	z-index: 11;
+	opacity: 1;
+}
+
+.reveal.center,
+.reveal.center .slides,
+.reveal.center .slides section {
+	min-height: 0 !important;
+}
+
+/* Don't allow interaction with invisible slides */
+.reveal .slides>section.future,
+.reveal .slides>section>section.future,
+.reveal .slides>section.past,
+.reveal .slides>section>section.past {
+	pointer-events: none;
+}
+
+.reveal.overview .slides>section,
+.reveal.overview .slides>section>section {
+	pointer-events: auto;
+}
+
+.reveal .slides>section.past,
+.reveal .slides>section.future,
+.reveal .slides>section>section.past,
+.reveal .slides>section>section.future {
+	opacity: 0;
+}
+
+
+/*********************************************
+ * Mixins for readability of transitions
+ *********************************************/
+
+ at mixin transition-global($style) {
+	.reveal .slides section[data-transition=#{$style}],
+	.reveal.#{$style} .slides section:not([data-transition]) {
+		@content;
+	}
+}
+ at mixin transition-horizontal-past($style) {
+	.reveal .slides>section[data-transition=#{$style}].past,
+	.reveal .slides>section[data-transition~=#{$style}-out].past,
+	.reveal.#{$style} .slides>section:not([data-transition]).past {
+		@content;
+	}
+}
+ at mixin transition-horizontal-future($style) {
+	.reveal .slides>section[data-transition=#{$style}].future,
+	.reveal .slides>section[data-transition~=#{$style}-in].future,
+	.reveal.#{$style} .slides>section:not([data-transition]).future {
+		@content;
+	}
+}
+
+ at mixin transition-vertical-past($style) {
+	.reveal .slides>section>section[data-transition=#{$style}].past,
+	.reveal .slides>section>section[data-transition~=#{$style}-out].past,
+	.reveal.#{$style} .slides>section>section:not([data-transition]).past {
+		@content;
+	}
+}
+ at mixin transition-vertical-future($style) {
+	.reveal .slides>section>section[data-transition=#{$style}].future,
+	.reveal .slides>section>section[data-transition~=#{$style}-in].future,
+	.reveal.#{$style} .slides>section>section:not([data-transition]).future {
+		@content;
+	}
+}
+
+/*********************************************
+ * SLIDE TRANSITION
+ * Aliased 'linear' for backwards compatibility
+ *********************************************/
+
+ at each $stylename in slide, linear {
+	.reveal.#{$stylename} section {
+		backface-visibility: hidden;
+	}
+	@include transition-horizontal-past(#{$stylename}) {
+		transform: translate(-150%, 0);
+	}
+	@include transition-horizontal-future(#{$stylename}) {
+		transform: translate(150%, 0);
+	}
+	@include transition-vertical-past(#{$stylename}) {
+		transform: translate(0, -150%);
+	}
+	@include transition-vertical-future(#{$stylename}) {
+		transform: translate(0, 150%);
+	}
+}
+
+/*********************************************
+ * CONVEX TRANSITION
+ * Aliased 'default' for backwards compatibility
+ *********************************************/
+
+ at each $stylename in default, convex {
+	@include transition-horizontal-past(#{$stylename}) {
+		transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+	}
+	@include transition-horizontal-future(#{$stylename}) {
+		transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+	}
+	@include transition-vertical-past(#{$stylename}) {
+		transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0);
+	}
+	@include transition-vertical-future(#{$stylename}) {
+		transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
+	}
+}
+
+/*********************************************
+ * CONCAVE TRANSITION
+ *********************************************/
+
+ at include transition-horizontal-past(concave) {
+	transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
+}
+ at include transition-horizontal-future(concave) {
+	transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
+}
+ at include transition-vertical-past(concave) {
+	transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0);
+}
+ at include transition-vertical-future(concave) {
+	transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0);
+}
+
+
+/*********************************************
+ * ZOOM TRANSITION
+ *********************************************/
+
+ at include transition-global(zoom) {
+	transition-timing-function: ease;
+}
+ at include transition-horizontal-past(zoom) {
+	visibility: hidden;
+	transform: scale(16);
+}
+ at include transition-horizontal-future(zoom) {
+	visibility: hidden;
+	transform: scale(0.2);
+}
+ at include transition-vertical-past(zoom) {
+	transform: translate(0, -150%);
+}
+ at include transition-vertical-future(zoom) {
+	transform: translate(0, 150%);
+}
+
+
+/*********************************************
+ * CUBE TRANSITION
+ *********************************************/
+
+.reveal.cube .slides {
+	perspective: 1300px;
+}
+
+.reveal.cube .slides section {
+	padding: 30px;
+	min-height: 700px;
+	backface-visibility: hidden;
+	box-sizing: border-box;
+}
+	.reveal.center.cube .slides section {
+		min-height: 0;
+	}
+	.reveal.cube .slides section:not(.stack):before {
+		content: '';
+		position: absolute;
+		display: block;
+		width: 100%;
+		height: 100%;
+		left: 0;
+		top: 0;
+		background: rgba(0,0,0,0.1);
+		border-radius: 4px;
+		transform: translateZ( -20px );
+	}
+	.reveal.cube .slides section:not(.stack):after {
+		content: '';
+		position: absolute;
+		display: block;
+		width: 90%;
+		height: 30px;
+		left: 5%;
+		bottom: 0;
+		background: none;
+		z-index: 1;
+
+		border-radius: 4px;
+		box-shadow: 0px 95px 25px rgba(0,0,0,0.2);
+		transform: translateZ(-90px) rotateX( 65deg );
+	}
+
+.reveal.cube .slides>section.stack {
+	padding: 0;
+	background: none;
+}
+
+.reveal.cube .slides>section.past {
+	transform-origin: 100% 0%;
+	transform: translate3d(-100%, 0, 0) rotateY(-90deg);
+}
+
+.reveal.cube .slides>section.future {
+	transform-origin: 0% 0%;
+	transform: translate3d(100%, 0, 0) rotateY(90deg);
+}
+
+.reveal.cube .slides>section>section.past {
+	transform-origin: 0% 100%;
+	transform: translate3d(0, -100%, 0) rotateX(90deg);
+}
+
+.reveal.cube .slides>section>section.future {
+	transform-origin: 0% 0%;
+	transform: translate3d(0, 100%, 0) rotateX(-90deg);
+}
+
+
+/*********************************************
+ * PAGE TRANSITION
+ *********************************************/
+
+.reveal.page .slides {
+	perspective-origin: 0% 50%;
+	perspective: 3000px;
+}
+
+.reveal.page .slides section {
+	padding: 30px;
+	min-height: 700px;
+	box-sizing: border-box;
+}
+	.reveal.page .slides section.past {
+		z-index: 12;
+	}
+	.reveal.page .slides section:not(.stack):before {
+		content: '';
+		position: absolute;
+		display: block;
+		width: 100%;
+		height: 100%;
+		left: 0;
+		top: 0;
+		background: rgba(0,0,0,0.1);
+		transform: translateZ( -20px );
+	}
+	.reveal.page .slides section:not(.stack):after {
+		content: '';
+		position: absolute;
+		display: block;
+		width: 90%;
+		height: 30px;
+		left: 5%;
+		bottom: 0;
+		background: none;
+		z-index: 1;
+
+		border-radius: 4px;
+		box-shadow: 0px 95px 25px rgba(0,0,0,0.2);
+
+		-webkit-transform: translateZ(-90px) rotateX( 65deg );
+	}
+
+.reveal.page .slides>section.stack {
+	padding: 0;
+	background: none;
+}
+
+.reveal.page .slides>section.past {
+	transform-origin: 0% 0%;
+	transform: translate3d(-40%, 0, 0) rotateY(-80deg);
+}
+
+.reveal.page .slides>section.future {
+	transform-origin: 100% 0%;
+	transform: translate3d(0, 0, 0);
+}
+
+.reveal.page .slides>section>section.past {
+	transform-origin: 0% 0%;
+	transform: translate3d(0, -40%, 0) rotateX(80deg);
+}
+
+.reveal.page .slides>section>section.future {
+	transform-origin: 0% 100%;
+	transform: translate3d(0, 0, 0);
+}
+
+
+/*********************************************
+ * FADE TRANSITION
+ *********************************************/
+
+.reveal .slides section[data-transition=fade],
+.reveal.fade .slides section:not([data-transition]),
+.reveal.fade .slides>section>section:not([data-transition]) {
+	transform: none;
+	transition: opacity 0.5s;
+}
+
+
+.reveal.fade.overview .slides section,
+.reveal.fade.overview .slides>section>section {
+	transition: none;
+}
+
+
+/*********************************************
+ * NO TRANSITION
+ *********************************************/
+
+ at include transition-global(none) {
+	transform: none;
+	transition: none;
+}
+
+
+/*********************************************
+ * PAUSED MODE
+ *********************************************/
+
+.reveal .pause-overlay {
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	height: 100%;
+	background: black;
+	visibility: hidden;
+	opacity: 0;
+	z-index: 100;
+	transition: all 1s ease;
+}
+.reveal.paused .pause-overlay {
+	visibility: visible;
+	opacity: 1;
+}
+
+
+/*********************************************
+ * FALLBACK
+ *********************************************/
+
+.no-transforms {
+	overflow-y: auto;
+}
+
+.no-transforms .reveal .slides {
+	position: relative;
+	width: 80%;
+	height: auto !important;
+	top: 0;
+	left: 50%;
+	margin: 0;
+	text-align: center;
+}
+
+.no-transforms .reveal .controls,
+.no-transforms .reveal .progress {
+	display: none !important;
+}
+
+.no-transforms .reveal .slides section {
+	display: block !important;
+	opacity: 1 !important;
+	position: relative !important;
+	height: auto;
+	min-height: 0;
+	top: 0;
+	left: -50%;
+	margin: 70px 0;
+	transform: none;
+}
+
+.no-transforms .reveal .slides section section {
+	left: 0;
+}
+
+.reveal .no-transition,
+.reveal .no-transition * {
+	transition: none !important;
+}
+
+
+/*********************************************
+ * PER-SLIDE BACKGROUNDS
+ *********************************************/
+
+.reveal .backgrounds {
+	position: absolute;
+	width: 100%;
+	height: 100%;
+	top: 0;
+	left: 0;
+	perspective: 600px;
+}
+	.reveal .slide-background {
+		display: none;
+		position: absolute;
+		width: 100%;
+		height: 100%;
+		opacity: 0;
+		visibility: hidden;
+
+		background-color: rgba( 0, 0, 0, 0 );
+		background-position: 50% 50%;
+		background-repeat: no-repeat;
+		background-size: cover;
+
+		transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+	}
+
+	.reveal .slide-background.stack {
+		display: block;
+	}
+
+	.reveal .slide-background.present {
+		opacity: 1;
+		visibility: visible;
+	}
+
+	.print-pdf .reveal .slide-background {
+		opacity: 1 !important;
+		visibility: visible !important;
+	}
+
+/* Video backgrounds */
+.reveal .slide-background video {
+	position: absolute;
+	width: 100%;
+	height: 100%;
+	max-width: none;
+	max-height: none;
+	top: 0;
+	left: 0;
+}
+
+/* Immediate transition style */
+.reveal[data-background-transition=none]>.backgrounds .slide-background,
+.reveal>.backgrounds .slide-background[data-background-transition=none] {
+	transition: none;
+}
+
+/* Slide */
+.reveal[data-background-transition=slide]>.backgrounds .slide-background,
+.reveal>.backgrounds .slide-background[data-background-transition=slide] {
+	opacity: 1;
+	backface-visibility: hidden;
+}
+	.reveal[data-background-transition=slide]>.backgrounds .slide-background.past,
+	.reveal>.backgrounds .slide-background.past[data-background-transition=slide] {
+		transform: translate(-100%, 0);
+	}
+	.reveal[data-background-transition=slide]>.backgrounds .slide-background.future,
+	.reveal>.backgrounds .slide-background.future[data-background-transition=slide] {
+		transform: translate(100%, 0);
+	}
+
+	.reveal[data-background-transition=slide]>.backgrounds .slide-background>.slide-background.past,
+	.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=slide] {
+		transform: translate(0, -100%);
+	}
+	.reveal[data-background-transition=slide]>.backgrounds .slide-background>.slide-background.future,
+	.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=slide] {
+		transform: translate(0, 100%);
+	}
+
+
+/* Convex */
+.reveal[data-background-transition=convex]>.backgrounds .slide-background.past,
+.reveal>.backgrounds .slide-background.past[data-background-transition=convex] {
+	opacity: 0;
+	transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+}
+.reveal[data-background-transition=convex]>.backgrounds .slide-background.future,
+.reveal>.backgrounds .slide-background.future[data-background-transition=convex] {
+	opacity: 0;
+	transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+}
+
+.reveal[data-background-transition=convex]>.backgrounds .slide-background>.slide-background.past,
+.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=convex] {
+	opacity: 0;
+	transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0);
+}
+.reveal[data-background-transition=convex]>.backgrounds .slide-background>.slide-background.future,
+.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=convex] {
+	opacity: 0;
+	transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0);
+}
+
+
+/* Concave */
+.reveal[data-background-transition=concave]>.backgrounds .slide-background.past,
+.reveal>.backgrounds .slide-background.past[data-background-transition=concave] {
+	opacity: 0;
+	transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
+}
+.reveal[data-background-transition=concave]>.backgrounds .slide-background.future,
+.reveal>.backgrounds .slide-background.future[data-background-transition=concave] {
+	opacity: 0;
+	transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
+}
+
+.reveal[data-background-transition=concave]>.backgrounds .slide-background>.slide-background.past,
+.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=concave] {
+	opacity: 0;
+	transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0);
+}
+.reveal[data-background-transition=concave]>.backgrounds .slide-background>.slide-background.future,
+.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=concave] {
+	opacity: 0;
+	transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0);
+}
+
+/* Zoom */
+.reveal[data-background-transition=zoom]>.backgrounds .slide-background,
+.reveal>.backgrounds .slide-background[data-background-transition=zoom] {
+	transition-timing-function: ease;
+}
+
+.reveal[data-background-transition=zoom]>.backgrounds .slide-background.past,
+.reveal>.backgrounds .slide-background.past[data-background-transition=zoom] {
+	opacity: 0;
+	visibility: hidden;
+	transform: scale(16);
+}
+.reveal[data-background-transition=zoom]>.backgrounds .slide-background.future,
+.reveal>.backgrounds .slide-background.future[data-background-transition=zoom] {
+	opacity: 0;
+	visibility: hidden;
+	transform: scale(0.2);
+}
+
+.reveal[data-background-transition=zoom]>.backgrounds .slide-background>.slide-background.past,
+.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=zoom] {
+	opacity: 0;
+		visibility: hidden;
+		transform: scale(16);
+}
+.reveal[data-background-transition=zoom]>.backgrounds .slide-background>.slide-background.future,
+.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=zoom] {
+	opacity: 0;
+	visibility: hidden;
+	transform: scale(0.2);
+}
+
+
+/* Global transition speed settings */
+.reveal[data-transition-speed="fast"]>.backgrounds .slide-background {
+	transition-duration: 400ms;
+}
+.reveal[data-transition-speed="slow"]>.backgrounds .slide-background {
+	transition-duration: 1200ms;
+}
+
+
+/*********************************************
+ * OVERVIEW
+ *********************************************/
+
+.reveal.overview {
+	perspective-origin: 50% 50%;
+	perspective: 700px;
+
+	.slides section {
+		height: 700px;
+		opacity: 1 !important;
+		overflow: hidden;
+		visibility: visible !important;
+		cursor: pointer;
+		box-sizing: border-box;
+	}
+	.slides section:hover,
+	.slides section.present {
+		outline: 10px solid rgba(150,150,150,0.4);
+		outline-offset: 10px;
+	}
+	.slides section .fragment {
+		opacity: 1;
+		transition: none;
+	}
+	.slides section:after,
+	.slides section:before {
+		display: none !important;
+	}
+	.slides>section.stack {
+		padding: 0;
+		top: 0 !important;
+		background: none;
+		outline: none;
+		overflow: visible;
+	}
+
+	.backgrounds {
+		perspective: inherit;
+	}
+
+	.backgrounds .slide-background {
+		opacity: 1;
+		visibility: visible;
+
+		// This can't be applied to the slide itself in Safari
+		outline: 10px solid rgba(150,150,150,0.1);
+		outline-offset: 10px;
+	}
+}
+
+// Disable transitions transitions while we're activating
+// or deactivating the overview mode.
+.reveal.overview .slides section,
+.reveal.overview-deactivating .slides section {
+	transition: none;
+}
+
+.reveal.overview .backgrounds .slide-background,
+.reveal.overview-deactivating .backgrounds .slide-background {
+	transition: none;
+}
+
+.reveal.overview-animated .slides {
+	transition: transform 0.4s ease;
+}
+
+
+/*********************************************
+ * RTL SUPPORT
+ *********************************************/
+
+.reveal.rtl .slides,
+.reveal.rtl .slides h1,
+.reveal.rtl .slides h2,
+.reveal.rtl .slides h3,
+.reveal.rtl .slides h4,
+.reveal.rtl .slides h5,
+.reveal.rtl .slides h6 {
+	direction: rtl;
+	font-family: sans-serif;
+}
+
+.reveal.rtl pre,
+.reveal.rtl code {
+	direction: ltr;
+}
+
+.reveal.rtl ol,
+.reveal.rtl ul {
+	text-align: right;
+}
+
+.reveal.rtl .progress span {
+	float: right
+}
+
+/*********************************************
+ * PARALLAX BACKGROUND
+ *********************************************/
+
+.reveal.has-parallax-background .backgrounds {
+	transition: all 0.8s ease;
+}
+
+/* Global transition speed settings */
+.reveal.has-parallax-background[data-transition-speed="fast"] .backgrounds {
+	transition-duration: 400ms;
+}
+.reveal.has-parallax-background[data-transition-speed="slow"] .backgrounds {
+	transition-duration: 1200ms;
+}
+
+
+/*********************************************
+ * LINK PREVIEW OVERLAY
+ *********************************************/
+
+.reveal .overlay {
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	height: 100%;
+	z-index: 1000;
+	background: rgba( 0, 0, 0, 0.9 );
+	opacity: 0;
+	visibility: hidden;
+	transition: all 0.3s ease;
+}
+	.reveal .overlay.visible {
+		opacity: 1;
+		visibility: visible;
+	}
+
+	.reveal .overlay .spinner {
+		position: absolute;
+		display: block;
+		top: 50%;
+		left: 50%;
+		width: 32px;
+		height: 32px;
+		margin: -16px 0 0 -16px;
+		z-index: 10;
+		background-image: url(data:image/gif;base64,R0lGODlhIAAgAPMAAJmZmf%2F%2F%2F6%2Bvr8nJybW1tcDAwOjo6Nvb26ioqKOjo7Ozs%2FLy8vz8%2FAAAAAAAAAAAACH%2FC05FVFNDQVBFMi4wAwEAAAAh%2FhpDcmVhdGVkIHdpdGggYWpheGxvYWQuaW5mbwAh%2BQQJCgAAACwAAAAAIAAgAAAE5xDISWlhperN52JLhSSdRgwVo1ICQZRUsiwHpTJT4iowNS8vyW2icCF6k8HMMBkCEDskxTBDAZwuAkkqIfxIQyhBQBFvAQSDITM5VDW6XNE4KagNh6Bgwe60smQUB3d4Rz1ZBApnFASDd0hihh12BkE9kjAJVlycXIg7CQIFA6SlnJ87paqbSKiKoqusnbMdmDC2tXQlkUhziYtyWTxIfy6BE8WJt5YJvpJivxNaGmLHT0VnOgSYf0dZXS7APdpB [...]
+
+		visibility: visible;
+		opacity: 0.6;
+		transition: all 0.3s ease;
+	}
+
+	.reveal .overlay header {
+		position: absolute;
+		left: 0;
+		top: 0;
+		width: 100%;
+		height: 40px;
+		z-index: 2;
+		border-bottom: 1px solid #222;
+	}
+		.reveal .overlay header a {
+			display: inline-block;
+			width: 40px;
+			height: 40px;
+			padding: 0 10px;
+			float: right;
+			opacity: 0.6;
+
+			box-sizing: border-box;
+		}
+			.reveal .overlay header a:hover {
+				opacity: 1;
+			}
+			.reveal .overlay header a .icon {
+				display: inline-block;
+				width: 20px;
+				height: 20px;
+
+				background-position: 50% 50%;
+				background-size: 100%;
+				background-repeat: no-repeat;
+			}
+			.reveal .overlay header a.close .icon {
+				background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAABkklEQVRYR8WX4VHDMAxG6wnoJrABZQPYBCaBTWAD2g1gE5gg6OOsXuxIlr40d81dfrSJ9V4c2VLK7spHuTJ/5wpM07QXuXc5X0opX2tEJcadjHuV80li/FgxTIEK/5QBCICBD6xEhSMGHgQPgBgLiYVAB1dpSqKDawxTohFw4JSEA3clzgIBPCURwE2JucBR7rhPJJv5OpJwDX+SfDjgx1wACQeJG1aChP9K/IMmdZ8DtESV1WyP3Bt4MwM6sj4NMxMYiqUWHQu4KYA/SYkIjOsm3BXYWMKFDwU2khjCQ4ELJUJ4SmClRArOCmSXGuKma0fYD5CbzHxFpCSGAhfAVSSUGDUk2BWZaff2g6GE15BsBQ9nwmpIGDiyHQddwNTMKkbZaf9fajXQ [...]
+			}
+			.reveal .overlay header a.external .icon {
+				background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAcElEQVRYR+2WSQoAIQwEzf8f7XiOMkUQxUPlGkM3hVmiQfQR9GYnH1SsAQlI4DiBqkCMoNb9y2e90IAEJPAcgdznU9+engMaeJ7Azh5Y1U67gAho4DqBqmB1buAf0MB1AlVBek83ZPkmJMGc1wAR+AAqod/B97TRpQAAAABJRU5ErkJggg==);
+			}
+
+	.reveal .overlay .viewport {
+		position: absolute;
+		top: 40px;
+		right: 0;
+		bottom: 0;
+		left: 0;
+	}
+
+	.reveal .overlay.overlay-preview .viewport iframe {
+		width: 100%;
+		height: 100%;
+		max-width: 100%;
+		max-height: 100%;
+		border: 0;
+
+		opacity: 0;
+		visibility: hidden;
+		transition: all 0.3s ease;
+	}
+
+	.reveal .overlay.overlay-preview.loaded .viewport iframe {
+		opacity: 1;
+		visibility: visible;
+	}
+
+	.reveal .overlay.overlay-preview.loaded .spinner {
+		opacity: 0;
+		visibility: hidden;
+		transform: scale(0.2);
+	}
+
+	.reveal .overlay.overlay-help .viewport {
+		overflow: auto;
+		color: #fff;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner {
+		width: 600px;
+		margin: 0 auto;
+		padding: 60px;
+		text-align: center;
+		letter-spacing: normal;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner .title {
+		font-size: 20px;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner table {
+		border: 1px solid #fff;
+		border-collapse: collapse;
+		font-size: 14px;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner table th,
+	.reveal .overlay.overlay-help .viewport .viewport-inner table td {
+		width: 200px;
+		padding: 10px;
+		border: 1px solid #fff;
+		vertical-align: middle;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner table th {
+		padding-top: 20px;
+		padding-bottom: 20px;
+	}
+
+
+
+/*********************************************
+ * PLAYBACK COMPONENT
+ *********************************************/
+
+.reveal .playback {
+	position: fixed;
+	left: 15px;
+	bottom: 20px;
+	z-index: 30;
+	cursor: pointer;
+	transition: all 400ms ease;
+}
+
+.reveal.overview .playback {
+	opacity: 0;
+	visibility: hidden;
+}
+
+
+/*********************************************
+ * ROLLING LINKS
+ *********************************************/
+
+.reveal .roll {
+	display: inline-block;
+	line-height: 1.2;
+	overflow: hidden;
+
+	vertical-align: top;
+	perspective: 400px;
+	perspective-origin: 50% 50%;
+}
+	.reveal .roll:hover {
+		background: none;
+		text-shadow: none;
+	}
+.reveal .roll span {
+	display: block;
+	position: relative;
+	padding: 0 2px;
+
+	pointer-events: none;
+	transition: all 400ms ease;
+	transform-origin: 50% 0%;
+	transform-style: preserve-3d;
+	backface-visibility: hidden;
+}
+	.reveal .roll:hover span {
+	    background: rgba(0,0,0,0.5);
+	    transform: translate3d( 0px, 0px, -45px ) rotateX( 90deg );
+	}
+.reveal .roll span:after {
+	content: attr(data-title);
+
+	display: block;
+	position: absolute;
+	left: 0;
+	top: 0;
+	padding: 0 2px;
+	backface-visibility: hidden;
+	transform-origin: 50% 0%;
+	transform: translate3d( 0px, 110%, 0px ) rotateX( -90deg );
+}
+
+
+/*********************************************
+ * SPEAKER NOTES
+ *********************************************/
+
+// Hide on-page notes
+.reveal aside.notes {
+	display: none;
+}
+
+// An interface element that can optionally be used to show the
+// speaker notes to all viewers, on top of the presentation
+.reveal .speaker-notes {
+	display: none;
+	position: absolute;
+	width: 70%;
+	max-height: 15%;
+	left: 15%;
+	bottom: 26px;
+	padding: 10px;
+	z-index: 1;
+	font-size: 18px;
+	line-height: 1.4;
+	color: #fff;
+	background-color: rgba(0,0,0,0.5);
+	overflow: auto;
+	box-sizing: border-box;
+	text-align: left;
+	font-family: Helvetica, sans-serif;
+	-webkit-overflow-scrolling: touch;
+}
+
+.reveal .speaker-notes.visible:not(:empty) {
+	display: block;
+}
+
+ at media screen and (max-width: 1024px) {
+	.reveal .speaker-notes {
+		font-size: 14px;
+	}
+}
+
+ at media screen and (max-width: 600px) {
+	.reveal .speaker-notes {
+		width: 90%;
+		left: 5%;
+	}
+}
+
+
+/*********************************************
+ * ZOOM PLUGIN
+ *********************************************/
+
+.zoomed .reveal *,
+.zoomed .reveal *:before,
+.zoomed .reveal *:after {
+	backface-visibility: visible !important;
+}
+
+.zoomed .reveal .progress,
+.zoomed .reveal .controls {
+	opacity: 0;
+}
+
+.zoomed .reveal .roll span {
+	background: none;
+}
+
+.zoomed .reveal .roll span:after {
+	visibility: hidden;
+}
+
+
diff --git a/2017-08-11-DebConf17/css/theme/README.md b/2017-08-11-DebConf17/css/theme/README.md
new file mode 100644
index 0000000..5a6c8fa
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/README.md
@@ -0,0 +1,21 @@
+## Dependencies
+
+Themes are written using Sass to keep things modular and reduce the need for repeated selectors across files. Make sure that you have the reveal.js development environment including the Grunt dependencies installed before proceding: https://github.com/hakimel/reveal.js#full-setup
+
+## Creating a Theme
+
+To create your own theme, start by duplicating a ```.scss``` file in [/css/theme/source](https://github.com/hakimel/reveal.js/blob/master/css/theme/source). It will be automatically compiled by Grunt from Sass to CSS (see the [Gruntfile](https://github.com/hakimel/reveal.js/blob/master/Gruntfile.js)) when you run `grunt css-themes`.
+
+Each theme file does four things in the following order:
+
+1. **Include [/css/theme/template/mixins.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/mixins.scss)**
+Shared utility functions.
+
+2. **Include [/css/theme/template/settings.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/settings.scss)**
+Declares a set of custom variables that the template file (step 4) expects. Can be overridden in step 3.
+
+3. **Override**
+This is where you override the default theme. Either by specifying variables (see [settings.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/settings.scss) for reference) or by adding any selectors and styles you please.
+
+4. **Include [/css/theme/template/theme.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/theme.scss)**
+The template theme file which will generate final CSS output based on the currently defined variables.
diff --git a/2017-08-11-DebConf17/css/theme/beige.css b/2017-08-11-DebConf17/css/theme/beige.css
new file mode 100644
index 0000000..be18733
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/beige.css
@@ -0,0 +1,290 @@
+/**
+ * Beige theme for reveal.js.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #f7f2d3;
+  background: -moz-radial-gradient(center, circle cover, white 0%, #f7f2d3 100%);
+  background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, white), color-stop(100%, #f7f2d3));
+  background: -webkit-radial-gradient(center, circle cover, white 0%, #f7f2d3 100%);
+  background: -o-radial-gradient(center, circle cover, white 0%, #f7f2d3 100%);
+  background: -ms-radial-gradient(center, circle cover, white 0%, #f7f2d3 100%);
+  background: radial-gradient(center, circle cover, white 0%, #f7f2d3 100%);
+  background-color: #f7f3de; }
+
+.reveal {
+  font-family: "Lato", sans-serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #333; }
+
+::selection {
+  color: #fff;
+  background: rgba(79, 64, 28, 0.99);
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #333;
+  font-family: "League Gothic", Impact, sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 5px rgba(0, 0, 0, 0.2), 0 5px 10px rgba(0, 0, 0, 0.25), 0 20px 20px rgba(0, 0, 0, 0.15); }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #8b743d;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #c0a86e;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #564826; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #333;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #8b743d;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #8b743d; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #8b743d; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #8b743d; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #8b743d; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #c0a86e; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #c0a86e; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #c0a86e; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #c0a86e; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #8b743d;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/black.css b/2017-08-11-DebConf17/css/theme/black.css
new file mode 100644
index 0000000..0a5a319
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/black.css
@@ -0,0 +1,286 @@
+/**
+ * Black theme for reveal.js. This is the opposite of the 'white' theme.
+ *
+ * By Hakim El Hattab, http://hakim.se
+ */
+ at import url(../../lib/font/source-sans-pro/source-sans-pro.css);
+section.has-light-background, section.has-light-background h1, section.has-light-background h2, section.has-light-background h3, section.has-light-background h4, section.has-light-background h5, section.has-light-background h6 {
+  color: #222; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #000;
+  background-color: #000; }
+
+.reveal {
+  font-family: "Source Sans Pro", Helvetica, sans-serif;
+  font-size: 38px;
+  font-weight: normal;
+  color: #fff; }
+
+::selection {
+  color: #fff;
+  background: #bee4fd;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #fff;
+  font-family: "Source Sans Pro", Helvetica, sans-serif;
+  font-weight: 600;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 2.5em; }
+
+.reveal h2 {
+  font-size: 1.6em; }
+
+.reveal h3 {
+  font-size: 1.3em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #42affa;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #8dcffc;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #068de9; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #fff;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #42affa;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #42affa; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #42affa; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #42affa; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #42affa; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #8dcffc; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #8dcffc; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #8dcffc; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #8dcffc; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #42affa;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/blood.css b/2017-08-11-DebConf17/css/theme/blood.css
new file mode 100644
index 0000000..e035ab6
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/blood.css
@@ -0,0 +1,309 @@
+/**
+ * Blood theme for reveal.js
+ * Author: Walther http://github.com/Walther
+ *
+ * Designed to be used with highlight.js theme
+ * "monokai_sublime.css" available from
+ * https://github.com/isagalaev/highlight.js/
+ *
+ * For other themes, change $codeBackground accordingly.
+ *
+ */
+ at import url(https://fonts.googleapis.com/css?family=Ubuntu:300,700,300italic,700italic);
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #222;
+  background-color: #222; }
+
+.reveal {
+  font-family: Ubuntu, "sans-serif";
+  font-size: 36px;
+  font-weight: normal;
+  color: #eee; }
+
+::selection {
+  color: #fff;
+  background: #a23;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #eee;
+  font-family: Ubuntu, "sans-serif";
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: 2px 2px 2px #222;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 5px rgba(0, 0, 0, 0.2), 0 5px 10px rgba(0, 0, 0, 0.25), 0 20px 20px rgba(0, 0, 0, 0.15); }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #a23;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #dd5566;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #6a1520; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #eee;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #a23;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #a23; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #a23; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #a23; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #a23; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #dd5566; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #dd5566; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #dd5566; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #dd5566; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #a23;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+.reveal p {
+  font-weight: 300;
+  text-shadow: 1px 1px #222; }
+
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  font-weight: 700; }
+
+.reveal p code {
+  background-color: #23241f;
+  display: inline-block;
+  border-radius: 7px; }
+
+.reveal small code {
+  vertical-align: baseline; }
diff --git a/2017-08-11-DebConf17/css/theme/league.css b/2017-08-11-DebConf17/css/theme/league.css
new file mode 100644
index 0000000..fa9f53c
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/league.css
@@ -0,0 +1,292 @@
+/**
+ * League theme for reveal.js.
+ *
+ * This was the default theme pre-3.0.0.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #1c1e20;
+  background: -moz-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
+  background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #555a5f), color-stop(100%, #1c1e20));
+  background: -webkit-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
+  background: -o-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
+  background: -ms-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
+  background: radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
+  background-color: #2b2b2b; }
+
+.reveal {
+  font-family: "Lato", sans-serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #eee; }
+
+::selection {
+  color: #fff;
+  background: #FF5E99;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #eee;
+  font-family: "League Gothic", Impact, sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: 0px 0px 6px rgba(0, 0, 0, 0.2);
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 5px rgba(0, 0, 0, 0.2), 0 5px 10px rgba(0, 0, 0, 0.25), 0 20px 20px rgba(0, 0, 0, 0.15); }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #13DAEC;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #71e9f4;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #0d99a5; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #eee;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #13DAEC;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #13DAEC; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #13DAEC; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #13DAEC; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #13DAEC; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #71e9f4; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #71e9f4; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #71e9f4; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #71e9f4; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #13DAEC;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/moon.css b/2017-08-11-DebConf17/css/theme/moon.css
new file mode 100644
index 0000000..b119576
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/moon.css
@@ -0,0 +1,290 @@
+/**
+ * Solarized Dark theme for reveal.js.
+ * Author: Achim Staebler
+ */
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+/**
+ * Solarized colors by Ethan Schoonover
+ */
+html * {
+  color-profile: sRGB;
+  rendering-intent: auto; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #002b36;
+  background-color: #002b36; }
+
+.reveal {
+  font-family: "Lato", sans-serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #93a1a1; }
+
+::selection {
+  color: #fff;
+  background: #d33682;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #eee8d5;
+  font-family: "League Gothic", Impact, sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #268bd2;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #78b9e6;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #1a6091; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #93a1a1;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #268bd2;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #268bd2; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #268bd2; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #268bd2; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #268bd2; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #78b9e6; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #78b9e6; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #78b9e6; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #78b9e6; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #268bd2;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/night.css b/2017-08-11-DebConf17/css/theme/night.css
new file mode 100644
index 0000000..3d0e3c5
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/night.css
@@ -0,0 +1,284 @@
+/**
+ * Black theme for reveal.js.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+ at import url(https://fonts.googleapis.com/css?family=Montserrat:700);
+ at import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic,700italic);
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #111;
+  background-color: #111; }
+
+.reveal {
+  font-family: "Open Sans", sans-serif;
+  font-size: 30px;
+  font-weight: normal;
+  color: #eee; }
+
+::selection {
+  color: #fff;
+  background: #e7ad52;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #eee;
+  font-family: "Montserrat", Impact, sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: -0.03em;
+  text-transform: none;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #e7ad52;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #f3d7ac;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #d08a1d; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #eee;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #e7ad52;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #e7ad52; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #e7ad52; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #e7ad52; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #e7ad52; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #f3d7ac; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #f3d7ac; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #f3d7ac; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #f3d7ac; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #e7ad52;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/serif.css b/2017-08-11-DebConf17/css/theme/serif.css
new file mode 100644
index 0000000..736c0b5
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/serif.css
@@ -0,0 +1,286 @@
+/**
+ * A simple theme for reveal.js presentations, similar
+ * to the default theme. The accent color is brown.
+ *
+ * This theme is Copyright (C) 2012-2013 Owen Versteeg, http://owenversteeg.com - it is MIT licensed.
+ */
+.reveal a {
+  line-height: 1.3em; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #F0F1EB;
+  background-color: #F0F1EB; }
+
+.reveal {
+  font-family: "Palatino Linotype", "Book Antiqua", Palatino, FreeSerif, serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #000; }
+
+::selection {
+  color: #fff;
+  background: #26351C;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #383D3D;
+  font-family: "Palatino Linotype", "Book Antiqua", Palatino, FreeSerif, serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: none;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #51483D;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #8b7c69;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #25211c; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #000;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #51483D;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #51483D; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #51483D; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #51483D; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #51483D; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #8b7c69; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #8b7c69; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #8b7c69; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #8b7c69; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #51483D;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/simple.css b/2017-08-11-DebConf17/css/theme/simple.css
new file mode 100644
index 0000000..20d919d
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/simple.css
@@ -0,0 +1,286 @@
+/**
+ * A simple theme for reveal.js presentations, similar
+ * to the default theme. The accent color is darkblue.
+ *
+ * This theme is Copyright (C) 2012 Owen Versteeg, https://github.com/StereotypicalApps. It is MIT licensed.
+ * reveal.js is Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+ at import url(https://fonts.googleapis.com/css?family=News+Cycle:400,700);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #fff;
+  background-color: #fff; }
+
+.reveal {
+  font-family: "Lato", sans-serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #000; }
+
+::selection {
+  color: #fff;
+  background: rgba(0, 0, 0, 0.99);
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #000;
+  font-family: "News Cycle", Impact, sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: none;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #00008B;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #0000f1;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #00003f; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #000;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #00008B;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #00008B; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #00008B; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #00008B; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #00008B; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #0000f1; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #0000f1; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #0000f1; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #0000f1; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #00008B;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/sky.css b/2017-08-11-DebConf17/css/theme/sky.css
new file mode 100644
index 0000000..e762a50
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/sky.css
@@ -0,0 +1,293 @@
+/**
+ * Sky theme for reveal.js.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+ at import url(https://fonts.googleapis.com/css?family=Quicksand:400,700,400italic,700italic);
+ at import url(https://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700);
+.reveal a {
+  line-height: 1.3em; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #add9e4;
+  background: -moz-radial-gradient(center, circle cover, #f7fbfc 0%, #add9e4 100%);
+  background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #f7fbfc), color-stop(100%, #add9e4));
+  background: -webkit-radial-gradient(center, circle cover, #f7fbfc 0%, #add9e4 100%);
+  background: -o-radial-gradient(center, circle cover, #f7fbfc 0%, #add9e4 100%);
+  background: -ms-radial-gradient(center, circle cover, #f7fbfc 0%, #add9e4 100%);
+  background: radial-gradient(center, circle cover, #f7fbfc 0%, #add9e4 100%);
+  background-color: #f7fbfc; }
+
+.reveal {
+  font-family: "Open Sans", sans-serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #333; }
+
+::selection {
+  color: #fff;
+  background: #134674;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #333;
+  font-family: "Quicksand", sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: -0.08em;
+  text-transform: uppercase;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #3b759e;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #74a7cb;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #264c66; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #333;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #3b759e;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #3b759e; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #3b759e; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #3b759e; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #3b759e; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #74a7cb; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #74a7cb; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #74a7cb; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #74a7cb; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #3b759e;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/solarized.css b/2017-08-11-DebConf17/css/theme/solarized.css
new file mode 100644
index 0000000..bf2f651
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/solarized.css
@@ -0,0 +1,290 @@
+/**
+ * Solarized Light theme for reveal.js.
+ * Author: Achim Staebler
+ */
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+/**
+ * Solarized colors by Ethan Schoonover
+ */
+html * {
+  color-profile: sRGB;
+  rendering-intent: auto; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #fdf6e3;
+  background-color: #fdf6e3; }
+
+.reveal {
+  font-family: "Lato", sans-serif;
+  font-size: 36px;
+  font-weight: normal;
+  color: #657b83; }
+
+::selection {
+  color: #fff;
+  background: #d33682;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #586e75;
+  font-family: "League Gothic", Impact, sans-serif;
+  font-weight: normal;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 3.77em; }
+
+.reveal h2 {
+  font-size: 2.11em; }
+
+.reveal h3 {
+  font-size: 1.55em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #268bd2;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #78b9e6;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #1a6091; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #657b83;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #268bd2;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #268bd2; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #268bd2; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #268bd2; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #268bd2; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #78b9e6; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #78b9e6; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #78b9e6; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #78b9e6; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #268bd2;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/css/theme/source/beige.scss b/2017-08-11-DebConf17/css/theme/source/beige.scss
new file mode 100644
index 0000000..5564f53
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/beige.scss
@@ -0,0 +1,39 @@
+/**
+ * Beige theme for reveal.js.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Include theme-specific fonts
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+
+
+// Override theme settings (see ../template/settings.scss)
+$mainColor: #333;
+$headingColor: #333;
+$headingTextShadow: none;
+$backgroundColor: #f7f3de;
+$linkColor: #8b743d;
+$linkColorHover: lighten( $linkColor, 20% );
+$selectionBackgroundColor: rgba(79, 64, 28, 0.99);
+$heading1TextShadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 20px 20px rgba(0,0,0,.15);
+
+// Background generator
+ at mixin bodyBackground() {
+	@include radial-gradient( rgba(247,242,211,1), rgba(255,255,255,1) );
+}
+
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/source/black.scss b/2017-08-11-DebConf17/css/theme/source/black.scss
new file mode 100644
index 0000000..5f7f601
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/black.scss
@@ -0,0 +1,49 @@
+/**
+ * Black theme for reveal.js. This is the opposite of the 'white' theme.
+ *
+ * By Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+// Include theme-specific fonts
+ at import url(../../lib/font/source-sans-pro/source-sans-pro.css);
+
+
+// Override theme settings (see ../template/settings.scss)
+$backgroundColor: #222;
+
+$mainColor: #fff;
+$headingColor: #fff;
+
+$mainFontSize: 38px;
+$mainFont: 'Source Sans Pro', Helvetica, sans-serif;
+$headingFont: 'Source Sans Pro', Helvetica, sans-serif;
+$headingTextShadow: none;
+$headingLetterSpacing: normal;
+$headingTextTransform: uppercase;
+$headingFontWeight: 600;
+$linkColor: #42affa;
+$linkColorHover: lighten( $linkColor, 15% );
+$selectionBackgroundColor: lighten( $linkColor, 25% );
+
+$heading1Size: 2.5em;
+$heading2Size: 1.6em;
+$heading3Size: 1.3em;
+$heading4Size: 1.0em;
+
+section.has-light-background {
+	&, h1, h2, h3, h4, h5, h6 {
+		color: #222;
+	}
+}
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/source/blood.scss b/2017-08-11-DebConf17/css/theme/source/blood.scss
new file mode 100644
index 0000000..d22b53d
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/blood.scss
@@ -0,0 +1,79 @@
+/**
+ * Blood theme for reveal.js
+ * Author: Walther http://github.com/Walther
+ *
+ * Designed to be used with highlight.js theme
+ * "monokai_sublime.css" available from
+ * https://github.com/isagalaev/highlight.js/
+ *
+ * For other themes, change $codeBackground accordingly.
+ *
+ */
+
+ // Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+// Include theme-specific fonts
+
+ at import url(https://fonts.googleapis.com/css?family=Ubuntu:300,700,300italic,700italic);
+
+// Colors used in the theme
+$blood: #a23;
+$coal: #222;
+$codeBackground: #23241f;
+
+$backgroundColor: $coal;
+
+// Main text
+$mainFont: Ubuntu, 'sans-serif';
+$mainFontSize: 36px;
+$mainColor: #eee;
+
+// Headings
+$headingFont: Ubuntu, 'sans-serif';
+$headingTextShadow: 2px 2px 2px $coal;
+
+// h1 shadow, borrowed humbly from 
+// (c) Default theme by Hakim El Hattab
+$heading1TextShadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 20px 20px rgba(0,0,0,.15);
+
+// Links
+$linkColor: $blood;
+$linkColorHover: lighten( $linkColor, 20% );
+
+// Text selection
+$selectionBackgroundColor: $blood;
+$selectionColor: #fff;
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
+
+// some overrides after theme template import
+
+.reveal p {
+    font-weight: 300;
+    text-shadow: 1px 1px $coal;
+}
+
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+    font-weight: 700;
+}
+
+.reveal p code {
+    background-color: $codeBackground;
+    display: inline-block;
+    border-radius: 7px;
+}
+
+.reveal small code {
+    vertical-align: baseline;
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/source/league.scss b/2017-08-11-DebConf17/css/theme/source/league.scss
new file mode 100644
index 0000000..46ea04a
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/league.scss
@@ -0,0 +1,34 @@
+/**
+ * League theme for reveal.js.
+ *
+ * This was the default theme pre-3.0.0.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Include theme-specific fonts
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+
+// Override theme settings (see ../template/settings.scss)
+$headingTextShadow: 0px 0px 6px rgba(0,0,0,0.2);
+$heading1TextShadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 20px 20px rgba(0,0,0,.15);
+
+// Background generator
+ at mixin bodyBackground() {
+	@include radial-gradient( rgba(28,30,32,1), rgba(85,90,95,1) );
+}
+
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/source/moon.scss b/2017-08-11-DebConf17/css/theme/source/moon.scss
new file mode 100644
index 0000000..e47e5b5
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/moon.scss
@@ -0,0 +1,57 @@
+/**
+ * Solarized Dark theme for reveal.js.
+ * Author: Achim Staebler
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Include theme-specific fonts
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+
+/**
+ * Solarized colors by Ethan Schoonover
+ */
+html * {
+	color-profile: sRGB;
+	rendering-intent: auto;
+}
+
+// Solarized colors
+$base03:    #002b36;
+$base02:    #073642;
+$base01:    #586e75;
+$base00:    #657b83;
+$base0:     #839496;
+$base1:     #93a1a1;
+$base2:     #eee8d5;
+$base3:     #fdf6e3;
+$yellow:    #b58900;
+$orange:    #cb4b16;
+$red:       #dc322f;
+$magenta:   #d33682;
+$violet:    #6c71c4;
+$blue:      #268bd2;
+$cyan:      #2aa198;
+$green:     #859900;
+
+// Override theme settings (see ../template/settings.scss)
+$mainColor: $base1;
+$headingColor: $base2;
+$headingTextShadow: none;
+$backgroundColor: $base03;
+$linkColor: $blue;
+$linkColorHover: lighten( $linkColor, 20% );
+$selectionBackgroundColor: $magenta;
+
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
diff --git a/2017-08-11-DebConf17/css/theme/source/night.scss b/2017-08-11-DebConf17/css/theme/source/night.scss
new file mode 100644
index 0000000..b0cb57f
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/night.scss
@@ -0,0 +1,35 @@
+/**
+ * Black theme for reveal.js.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+// Include theme-specific fonts
+ at import url(https://fonts.googleapis.com/css?family=Montserrat:700);
+ at import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic,700italic);
+
+
+// Override theme settings (see ../template/settings.scss)
+$backgroundColor: #111;
+
+$mainFont: 'Open Sans', sans-serif;
+$linkColor: #e7ad52;
+$linkColorHover: lighten( $linkColor, 20% );
+$headingFont: 'Montserrat', Impact, sans-serif;
+$headingTextShadow: none;
+$headingLetterSpacing: -0.03em;
+$headingTextTransform: none;
+$selectionBackgroundColor: #e7ad52;
+$mainFontSize: 30px;
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/source/serif.scss b/2017-08-11-DebConf17/css/theme/source/serif.scss
new file mode 100644
index 0000000..ec3fcb3
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/serif.scss
@@ -0,0 +1,35 @@
+/**
+ * A simple theme for reveal.js presentations, similar
+ * to the default theme. The accent color is brown.
+ *
+ * This theme is Copyright (C) 2012-2013 Owen Versteeg, http://owenversteeg.com - it is MIT licensed.
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Override theme settings (see ../template/settings.scss)
+$mainFont: 'Palatino Linotype', 'Book Antiqua', Palatino, FreeSerif, serif;
+$mainColor: #000;
+$headingFont: 'Palatino Linotype', 'Book Antiqua', Palatino, FreeSerif, serif;
+$headingColor: #383D3D;
+$headingTextShadow: none;
+$headingTextTransform: none;
+$backgroundColor: #F0F1EB;
+$linkColor: #51483D;
+$linkColorHover: lighten( $linkColor, 20% );
+$selectionBackgroundColor: #26351C;
+
+.reveal a {
+  line-height: 1.3em;
+}
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
diff --git a/2017-08-11-DebConf17/css/theme/source/simple.scss b/2017-08-11-DebConf17/css/theme/source/simple.scss
new file mode 100644
index 0000000..84c7d9b
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/simple.scss
@@ -0,0 +1,38 @@
+/**
+ * A simple theme for reveal.js presentations, similar
+ * to the default theme. The accent color is darkblue.
+ *
+ * This theme is Copyright (C) 2012 Owen Versteeg, https://github.com/StereotypicalApps. It is MIT licensed.
+ * reveal.js is Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Include theme-specific fonts
+ at import url(https://fonts.googleapis.com/css?family=News+Cycle:400,700);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+
+
+// Override theme settings (see ../template/settings.scss)
+$mainFont: 'Lato', sans-serif;
+$mainColor: #000;
+$headingFont: 'News Cycle', Impact, sans-serif;
+$headingColor: #000;
+$headingTextShadow: none;
+$headingTextTransform: none;
+$backgroundColor: #fff;
+$linkColor: #00008B;
+$linkColorHover: lighten( $linkColor, 20% );
+$selectionBackgroundColor: rgba(0, 0, 0, 0.99);
+
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/source/sky.scss b/2017-08-11-DebConf17/css/theme/source/sky.scss
new file mode 100644
index 0000000..3fee67c
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/sky.scss
@@ -0,0 +1,46 @@
+/**
+ * Sky theme for reveal.js.
+ *
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Include theme-specific fonts
+ at import url(https://fonts.googleapis.com/css?family=Quicksand:400,700,400italic,700italic);
+ at import url(https://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700);
+
+
+// Override theme settings (see ../template/settings.scss)
+$mainFont: 'Open Sans', sans-serif;
+$mainColor: #333;
+$headingFont: 'Quicksand', sans-serif;
+$headingColor: #333;
+$headingLetterSpacing: -0.08em;
+$headingTextShadow: none;
+$backgroundColor: #f7fbfc;
+$linkColor: #3b759e;
+$linkColorHover: lighten( $linkColor, 20% );
+$selectionBackgroundColor: #134674;
+
+// Fix links so they are not cut off
+.reveal a {
+	line-height: 1.3em;
+}
+
+// Background generator
+ at mixin bodyBackground() {
+	@include radial-gradient( #add9e4, #f7fbfc );
+}
+
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
diff --git a/2017-08-11-DebConf17/css/theme/source/solarized.scss b/2017-08-11-DebConf17/css/theme/source/solarized.scss
new file mode 100644
index 0000000..912be56
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/solarized.scss
@@ -0,0 +1,63 @@
+/**
+ * Solarized Light theme for reveal.js.
+ * Author: Achim Staebler
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+
+// Include theme-specific fonts
+ at import url(../../lib/font/league-gothic/league-gothic.css);
+ at import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+
+
+/**
+ * Solarized colors by Ethan Schoonover
+ */
+html * {
+	color-profile: sRGB;
+	rendering-intent: auto;
+}
+
+// Solarized colors
+$base03:    #002b36;
+$base02:    #073642;
+$base01:    #586e75;
+$base00:    #657b83;
+$base0:     #839496;
+$base1:     #93a1a1;
+$base2:     #eee8d5;
+$base3:     #fdf6e3;
+$yellow:    #b58900;
+$orange:    #cb4b16;
+$red:       #dc322f;
+$magenta:   #d33682;
+$violet:    #6c71c4;
+$blue:      #268bd2;
+$cyan:      #2aa198;
+$green:     #859900;
+
+// Override theme settings (see ../template/settings.scss)
+$mainColor: $base00;
+$headingColor: $base01;
+$headingTextShadow: none;
+$backgroundColor: $base3;
+$linkColor: $blue;
+$linkColorHover: lighten( $linkColor, 20% );
+$selectionBackgroundColor: $magenta;
+
+// Background generator
+// @mixin bodyBackground() {
+// 	@include radial-gradient( rgba($base3,1), rgba(lighten($base3, 20%),1) );
+// }
+
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
diff --git a/2017-08-11-DebConf17/css/theme/source/white.scss b/2017-08-11-DebConf17/css/theme/source/white.scss
new file mode 100644
index 0000000..6758ce0
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/source/white.scss
@@ -0,0 +1,49 @@
+/**
+ * White theme for reveal.js. This is the opposite of the 'black' theme.
+ *
+ * By Hakim El Hattab, http://hakim.se
+ */
+
+
+// Default mixins and settings -----------------
+ at import "../template/mixins";
+ at import "../template/settings";
+// ---------------------------------------------
+
+
+// Include theme-specific fonts
+ at import url(../../lib/font/source-sans-pro/source-sans-pro.css);
+
+
+// Override theme settings (see ../template/settings.scss)
+$backgroundColor: #fff;
+
+$mainColor: #222;
+$headingColor: #222;
+
+$mainFontSize: 38px;
+$mainFont: 'Source Sans Pro', Helvetica, sans-serif;
+$headingFont: 'Source Sans Pro', Helvetica, sans-serif;
+$headingTextShadow: none;
+$headingLetterSpacing: normal;
+$headingTextTransform: uppercase;
+$headingFontWeight: 600;
+$linkColor: #2a76dd;
+$linkColorHover: lighten( $linkColor, 15% );
+$selectionBackgroundColor: lighten( $linkColor, 25% );
+
+$heading1Size: 2.5em;
+$heading2Size: 1.6em;
+$heading3Size: 1.3em;
+$heading4Size: 1.0em;
+
+section.has-dark-background {
+	&, h1, h2, h3, h4, h5, h6 {
+		color: #fff;
+	}
+}
+
+
+// Theme template ------------------------------
+ at import "../template/theme";
+// ---------------------------------------------
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/template/mixins.scss b/2017-08-11-DebConf17/css/theme/template/mixins.scss
new file mode 100644
index 0000000..e0c5606
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/template/mixins.scss
@@ -0,0 +1,29 @@
+ at mixin vertical-gradient( $top, $bottom ) {
+	background: $top;
+	background: -moz-linear-gradient( top, $top 0%, $bottom 100% );
+	background: -webkit-gradient( linear, left top, left bottom, color-stop(0%,$top), color-stop(100%,$bottom) );
+	background: -webkit-linear-gradient( top, $top 0%, $bottom 100% );
+	background: -o-linear-gradient( top, $top 0%, $bottom 100% );
+	background: -ms-linear-gradient( top, $top 0%, $bottom 100% );
+	background: linear-gradient( top, $top 0%, $bottom 100% );
+}
+
+ at mixin horizontal-gradient( $top, $bottom ) {
+	background: $top;
+	background: -moz-linear-gradient( left, $top 0%, $bottom 100% );
+	background: -webkit-gradient( linear, left top, right top, color-stop(0%,$top), color-stop(100%,$bottom) );
+	background: -webkit-linear-gradient( left, $top 0%, $bottom 100% );
+	background: -o-linear-gradient( left, $top 0%, $bottom 100% );
+	background: -ms-linear-gradient( left, $top 0%, $bottom 100% );
+	background: linear-gradient( left, $top 0%, $bottom 100% );
+}
+
+ at mixin radial-gradient( $outer, $inner, $type: circle ) {
+	background: $outer;
+	background: -moz-radial-gradient( center, $type cover,  $inner 0%, $outer 100% );
+	background: -webkit-gradient( radial, center center, 0px, center center, 100%, color-stop(0%,$inner), color-stop(100%,$outer) );
+	background: -webkit-radial-gradient( center, $type cover,  $inner 0%, $outer 100% );
+	background: -o-radial-gradient( center, $type cover,  $inner 0%, $outer 100% );
+	background: -ms-radial-gradient( center, $type cover,  $inner 0%, $outer 100% );
+	background: radial-gradient( center, $type cover,  $inner 0%, $outer 100% );
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/template/settings.scss b/2017-08-11-DebConf17/css/theme/template/settings.scss
new file mode 100644
index 0000000..ffaac23
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/template/settings.scss
@@ -0,0 +1,43 @@
+// Base settings for all themes that can optionally be
+// overridden by the super-theme
+
+// Background of the presentation
+$backgroundColor: #2b2b2b;
+
+// Primary/body text
+$mainFont: 'Lato', sans-serif;
+$mainFontSize: 36px;
+$mainColor: #eee;
+
+// Vertical spacing between blocks of text
+$blockMargin: 20px;
+
+// Headings
+$headingMargin: 0 0 $blockMargin 0;
+$headingFont: 'League Gothic', Impact, sans-serif;
+$headingColor: #eee;
+$headingLineHeight: 1.2;
+$headingLetterSpacing: normal;
+$headingTextTransform: uppercase;
+$headingTextShadow: none;
+$headingFontWeight: normal;
+$heading1TextShadow: $headingTextShadow;
+
+$heading1Size: 3.77em;
+$heading2Size: 2.11em;
+$heading3Size: 1.55em;
+$heading4Size: 1.00em;
+
+// Links and actions
+$linkColor: #13DAEC;
+$linkColorHover: lighten( $linkColor, 20% );
+
+// Text selection
+$selectionBackgroundColor: #FF5E99;
+$selectionColor: #fff;
+
+// Generates the presentation background, can be overridden
+// to return a background image or gradient
+ at mixin bodyBackground() {
+	background: $backgroundColor;
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/css/theme/template/theme.scss b/2017-08-11-DebConf17/css/theme/template/theme.scss
new file mode 100644
index 0000000..9bb416a
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/template/theme.scss
@@ -0,0 +1,345 @@
+// Base theme template for reveal.js
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+
+body {
+	@include bodyBackground();
+	background-color: $backgroundColor;
+}
+
+.reveal {
+	font-family: $mainFont;
+	font-size: $mainFontSize;
+	font-weight: normal;
+	color: $mainColor;
+}
+
+::selection {
+	color: $selectionColor;
+	background: $selectionBackgroundColor;
+	text-shadow: none;
+}
+
+.reveal .slides>section,
+.reveal .slides>section>section {
+	line-height: 1.3;
+	font-weight: inherit;
+}
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+	margin: $headingMargin;
+	color: $headingColor;
+
+	font-family: $headingFont;
+	font-weight: $headingFontWeight;
+	line-height: $headingLineHeight;
+	letter-spacing: $headingLetterSpacing;
+
+	text-transform: $headingTextTransform;
+	text-shadow: $headingTextShadow;
+
+	word-wrap: break-word;
+}
+
+.reveal h1 {font-size: $heading1Size; }
+.reveal h2 {font-size: $heading2Size; }
+.reveal h3 {font-size: $heading3Size; }
+.reveal h4 {font-size: $heading4Size; }
+
+.reveal h1 {
+	text-shadow: $heading1TextShadow;
+}
+
+
+/*********************************************
+ * OTHER
+ *********************************************/
+
+.reveal p {
+	margin: $blockMargin 0;
+	line-height: 1.3;
+}
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+	max-width: 95%;
+	max-height: 95%;
+}
+.reveal strong,
+.reveal b {
+	font-weight: bold;
+}
+
+.reveal em {
+	font-style: italic;
+}
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+	display: inline-block;
+
+	text-align: left;
+	margin: 0 0 0 1em;
+}
+
+.reveal ol {
+	list-style-type: decimal;
+}
+
+.reveal ul {
+	list-style-type: disc;
+}
+
+.reveal ul ul {
+	list-style-type: square;
+}
+
+.reveal ul ul ul {
+	list-style-type: circle;
+}
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+	display: block;
+	margin-left: 40px;
+}
+
+.reveal dt {
+	font-weight: bold;
+}
+
+.reveal dd {
+	margin-left: 40px;
+}
+
+.reveal q,
+.reveal blockquote {
+	quotes: none;
+}
+
+.reveal blockquote {
+	display: block;
+	position: relative;
+	width: 70%;
+	margin: $blockMargin auto;
+	padding: 5px;
+
+	font-style: italic;
+	background: rgba(255, 255, 255, 0.05);
+	box-shadow: 0px 0px 2px rgba(0,0,0,0.2);
+}
+	.reveal blockquote p:first-child,
+	.reveal blockquote p:last-child {
+		display: inline-block;
+	}
+
+.reveal q {
+	font-style: italic;
+}
+
+.reveal pre {
+	display: block;
+	position: relative;
+	width: 90%;
+	margin: $blockMargin auto;
+
+	text-align: left;
+	font-size: 0.55em;
+	font-family: monospace;
+	line-height: 1.2em;
+
+	word-wrap: break-word;
+
+	box-shadow: 0px 0px 6px rgba(0,0,0,0.3);
+}
+.reveal code {
+	font-family: monospace;
+}
+
+.reveal pre code {
+	display: block;
+	padding: 5px;
+	overflow: auto;
+	max-height: 400px;
+	word-wrap: normal;
+}
+
+.reveal table {
+	margin: auto;
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+
+.reveal table th {
+	font-weight: bold;
+}
+
+.reveal table th,
+.reveal table td {
+	text-align: left;
+	padding: 0.2em 0.5em 0.2em 0.5em;
+	border-bottom: 1px solid;
+}
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+	text-align: center;
+}
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+	text-align: right;
+}
+
+.reveal table tr:last-child td {
+	border-bottom: none;
+}
+
+.reveal sup {
+	vertical-align: super;
+}
+.reveal sub {
+	vertical-align: sub;
+}
+
+.reveal small {
+	display: inline-block;
+	font-size: 0.6em;
+	line-height: 1.2em;
+	vertical-align: top;
+}
+
+.reveal small * {
+	vertical-align: top;
+}
+
+
+/*********************************************
+ * LINKS
+ *********************************************/
+
+.reveal a {
+	color: $linkColor;
+	text-decoration: none;
+
+	-webkit-transition: color .15s ease;
+	   -moz-transition: color .15s ease;
+	        transition: color .15s ease;
+}
+	.reveal a:hover {
+		color: $linkColorHover;
+
+		text-shadow: none;
+		border: none;
+	}
+
+.reveal .roll span:after {
+	color: #fff;
+	background: darken( $linkColor, 15% );
+}
+
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+
+.reveal section img {
+	margin: 15px 0px;
+	background: rgba(255,255,255,0.12);
+	border: 4px solid $mainColor;
+
+	box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
+}
+
+	.reveal section img.plain {
+		border: 0;
+		box-shadow: none;
+	}
+
+	.reveal a img {
+		-webkit-transition: all .15s linear;
+		   -moz-transition: all .15s linear;
+		        transition: all .15s linear;
+	}
+
+	.reveal a:hover img {
+		background: rgba(255,255,255,0.2);
+		border-color: $linkColor;
+
+		box-shadow: 0 0 20px rgba(0, 0, 0, 0.55);
+	}
+
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+	border-right-color: $linkColor;
+}
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+	border-left-color: $linkColor;
+}
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+	border-bottom-color: $linkColor;
+}
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+	border-top-color: $linkColor;
+}
+
+.reveal .controls .navigate-left.enabled:hover {
+	border-right-color: $linkColorHover;
+}
+
+.reveal .controls .navigate-right.enabled:hover {
+	border-left-color: $linkColorHover;
+}
+
+.reveal .controls .navigate-up.enabled:hover {
+	border-bottom-color: $linkColorHover;
+}
+
+.reveal .controls .navigate-down.enabled:hover {
+	border-top-color: $linkColorHover;
+}
+
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+
+.reveal .progress {
+	background: rgba(0,0,0,0.2);
+}
+	.reveal .progress span {
+		background: $linkColor;
+
+		-webkit-transition: width 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+		   -moz-transition: width 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+		        transition: width 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+	}
+
+
diff --git a/2017-08-11-DebConf17/css/theme/white.css b/2017-08-11-DebConf17/css/theme/white.css
new file mode 100644
index 0000000..14e1703
--- /dev/null
+++ b/2017-08-11-DebConf17/css/theme/white.css
@@ -0,0 +1,286 @@
+/**
+ * White theme for reveal.js. This is the opposite of the 'black' theme.
+ *
+ * By Hakim El Hattab, http://hakim.se
+ */
+ at import url(../../lib/font/source-sans-pro/source-sans-pro.css);
+section.has-dark-background, section.has-dark-background h1, section.has-dark-background h2, section.has-dark-background h3, section.has-dark-background h4, section.has-dark-background h5, section.has-dark-background h6 {
+  color: #fff; }
+
+/*********************************************
+ * GLOBAL STYLES
+ *********************************************/
+body {
+  background: #fff;
+  background-color: #fff; }
+
+.reveal {
+  font-family: "Source Sans Pro", Helvetica, sans-serif;
+  font-size: 38px;
+  font-weight: normal;
+  color: #222; }
+
+::selection {
+  color: #fff;
+  background: #98bdef;
+  text-shadow: none; }
+
+.reveal .slides > section,
+.reveal .slides > section > section {
+  line-height: 1.3;
+  font-weight: inherit; }
+
+/*********************************************
+ * HEADERS
+ *********************************************/
+.reveal h1,
+.reveal h2,
+.reveal h3,
+.reveal h4,
+.reveal h5,
+.reveal h6 {
+  margin: 0 0 20px 0;
+  color: #222;
+  font-family: "Source Sans Pro", Helvetica, sans-serif;
+  font-weight: 600;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-transform: uppercase;
+  text-shadow: none;
+  word-wrap: break-word; }
+
+.reveal h1 {
+  font-size: 2.5em; }
+
+.reveal h2 {
+  font-size: 1.6em; }
+
+.reveal h3 {
+  font-size: 1.3em; }
+
+.reveal h4 {
+  font-size: 1em; }
+
+.reveal h1 {
+  text-shadow: none; }
+
+/*********************************************
+ * OTHER
+ *********************************************/
+.reveal p {
+  margin: 20px 0;
+  line-height: 1.3; }
+
+/* Ensure certain elements are never larger than the slide itself */
+.reveal img,
+.reveal video,
+.reveal iframe {
+  max-width: 95%;
+  max-height: 95%; }
+
+.reveal strong,
+.reveal b {
+  font-weight: bold; }
+
+.reveal em {
+  font-style: italic; }
+
+.reveal ol,
+.reveal dl,
+.reveal ul {
+  display: inline-block;
+  text-align: left;
+  margin: 0 0 0 1em; }
+
+.reveal ol {
+  list-style-type: decimal; }
+
+.reveal ul {
+  list-style-type: disc; }
+
+.reveal ul ul {
+  list-style-type: square; }
+
+.reveal ul ul ul {
+  list-style-type: circle; }
+
+.reveal ul ul,
+.reveal ul ol,
+.reveal ol ol,
+.reveal ol ul {
+  display: block;
+  margin-left: 40px; }
+
+.reveal dt {
+  font-weight: bold; }
+
+.reveal dd {
+  margin-left: 40px; }
+
+.reveal q,
+.reveal blockquote {
+  quotes: none; }
+
+.reveal blockquote {
+  display: block;
+  position: relative;
+  width: 70%;
+  margin: 20px auto;
+  padding: 5px;
+  font-style: italic;
+  background: rgba(255, 255, 255, 0.05);
+  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+.reveal blockquote p:first-child,
+.reveal blockquote p:last-child {
+  display: inline-block; }
+
+.reveal q {
+  font-style: italic; }
+
+.reveal pre {
+  display: block;
+  position: relative;
+  width: 90%;
+  margin: 20px auto;
+  text-align: left;
+  font-size: 0.55em;
+  font-family: monospace;
+  line-height: 1.2em;
+  word-wrap: break-word;
+  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+.reveal code {
+  font-family: monospace; }
+
+.reveal pre code {
+  display: block;
+  padding: 5px;
+  overflow: auto;
+  max-height: 400px;
+  word-wrap: normal; }
+
+.reveal table {
+  margin: auto;
+  border-collapse: collapse;
+  border-spacing: 0; }
+
+.reveal table th {
+  font-weight: bold; }
+
+.reveal table th,
+.reveal table td {
+  text-align: left;
+  padding: 0.2em 0.5em 0.2em 0.5em;
+  border-bottom: 1px solid; }
+
+.reveal table th[align="center"],
+.reveal table td[align="center"] {
+  text-align: center; }
+
+.reveal table th[align="right"],
+.reveal table td[align="right"] {
+  text-align: right; }
+
+.reveal table tr:last-child td {
+  border-bottom: none; }
+
+.reveal sup {
+  vertical-align: super; }
+
+.reveal sub {
+  vertical-align: sub; }
+
+.reveal small {
+  display: inline-block;
+  font-size: 0.6em;
+  line-height: 1.2em;
+  vertical-align: top; }
+
+.reveal small * {
+  vertical-align: top; }
+
+/*********************************************
+ * LINKS
+ *********************************************/
+.reveal a {
+  color: #2a76dd;
+  text-decoration: none;
+  -webkit-transition: color 0.15s ease;
+  -moz-transition: color 0.15s ease;
+  transition: color 0.15s ease; }
+
+.reveal a:hover {
+  color: #6ca0e8;
+  text-shadow: none;
+  border: none; }
+
+.reveal .roll span:after {
+  color: #fff;
+  background: #1a53a1; }
+
+/*********************************************
+ * IMAGES
+ *********************************************/
+.reveal section img {
+  margin: 15px 0px;
+  background: rgba(255, 255, 255, 0.12);
+  border: 4px solid #222;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+.reveal section img.plain {
+  border: 0;
+  box-shadow: none; }
+
+.reveal a img {
+  -webkit-transition: all 0.15s linear;
+  -moz-transition: all 0.15s linear;
+  transition: all 0.15s linear; }
+
+.reveal a:hover img {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #2a76dd;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+/*********************************************
+ * NAVIGATION CONTROLS
+ *********************************************/
+.reveal .controls .navigate-left,
+.reveal .controls .navigate-left.enabled {
+  border-right-color: #2a76dd; }
+
+.reveal .controls .navigate-right,
+.reveal .controls .navigate-right.enabled {
+  border-left-color: #2a76dd; }
+
+.reveal .controls .navigate-up,
+.reveal .controls .navigate-up.enabled {
+  border-bottom-color: #2a76dd; }
+
+.reveal .controls .navigate-down,
+.reveal .controls .navigate-down.enabled {
+  border-top-color: #2a76dd; }
+
+.reveal .controls .navigate-left.enabled:hover {
+  border-right-color: #6ca0e8; }
+
+.reveal .controls .navigate-right.enabled:hover {
+  border-left-color: #6ca0e8; }
+
+.reveal .controls .navigate-up.enabled:hover {
+  border-bottom-color: #6ca0e8; }
+
+.reveal .controls .navigate-down.enabled:hover {
+  border-top-color: #6ca0e8; }
+
+/*********************************************
+ * PROGRESS BAR
+ *********************************************/
+.reveal .progress {
+  background: rgba(0, 0, 0, 0.2); }
+
+.reveal .progress span {
+  background: #2a76dd;
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
diff --git a/2017-08-11-DebConf17/js/reveal.js b/2017-08-11-DebConf17/js/reveal.js
new file mode 100644
index 0000000..2c92954
--- /dev/null
+++ b/2017-08-11-DebConf17/js/reveal.js
@@ -0,0 +1,4677 @@
+/*!
+ * reveal.js
+ * http://lab.hakim.se/reveal-js
+ * MIT licensed
+ *
+ * Copyright (C) 2016 Hakim El Hattab, http://hakim.se
+ */
+(function( root, factory ) {
+	if( typeof define === 'function' && define.amd ) {
+		// AMD. Register as an anonymous module.
+		define( function() {
+			root.Reveal = factory();
+			return root.Reveal;
+		} );
+	} else if( typeof exports === 'object' ) {
+		// Node. Does not work with strict CommonJS.
+		module.exports = factory();
+	} else {
+		// Browser globals.
+		root.Reveal = factory();
+	}
+}( this, function() {
+
+	'use strict';
+
+	var Reveal;
+
+	var SLIDES_SELECTOR = '.slides section',
+		HORIZONTAL_SLIDES_SELECTOR = '.slides>section',
+		VERTICAL_SLIDES_SELECTOR = '.slides>section.present>section',
+		HOME_SLIDE_SELECTOR = '.slides>section:first-of-type',
+
+		// Configuration defaults, can be overridden at initialization time
+		config = {
+
+			// The "normal" size of the presentation, aspect ratio will be preserved
+			// when the presentation is scaled to fit different resolutions
+			width: 960,
+			height: 700,
+
+			// Factor of the display size that should remain empty around the content
+			margin: 0.1,
+
+			// Bounds for smallest/largest possible scale to apply to content
+			minScale: 0.2,
+			maxScale: 1.5,
+
+			// Display controls in the bottom right corner
+			controls: true,
+
+			// Display a presentation progress bar
+			progress: true,
+
+			// Display the page number of the current slide
+			slideNumber: false,
+
+			// Push each slide change to the browser history
+			history: false,
+
+			// Enable keyboard shortcuts for navigation
+			keyboard: true,
+
+			// Optional function that blocks keyboard events when retuning false
+			keyboardCondition: null,
+
+			// Enable the slide overview mode
+			overview: true,
+
+			// Vertical centering of slides
+			center: true,
+
+			// Enables touch navigation on devices with touch input
+			touch: true,
+
+			// Loop the presentation
+			loop: false,
+
+			// Change the presentation direction to be RTL
+			rtl: false,
+
+			// Turns fragments on and off globally
+			fragments: true,
+
+			// Flags if the presentation is running in an embedded mode,
+			// i.e. contained within a limited portion of the screen
+			embedded: false,
+
+			// Flags if we should show a help overlay when the questionmark
+			// key is pressed
+			help: true,
+
+			// Flags if it should be possible to pause the presentation (blackout)
+			pause: true,
+
+			// Flags if speaker notes should be visible to all viewers
+			showNotes: false,
+
+			// Number of milliseconds between automatically proceeding to the
+			// next slide, disabled when set to 0, this value can be overwritten
+			// by using a data-autoslide attribute on your slides
+			autoSlide: 0,
+
+			// Stop auto-sliding after user input
+			autoSlideStoppable: true,
+
+			// Enable slide navigation via mouse wheel
+			mouseWheel: false,
+
+			// Apply a 3D roll to links on hover
+			rollingLinks: false,
+
+			// Hides the address bar on mobile devices
+			hideAddressBar: true,
+
+			// Opens links in an iframe preview overlay
+			previewLinks: false,
+
+			// Exposes the reveal.js API through window.postMessage
+			postMessage: true,
+
+			// Dispatches all reveal.js events to the parent window through postMessage
+			postMessageEvents: false,
+
+			// Focuses body when page changes visiblity to ensure keyboard shortcuts work
+			focusBodyOnPageVisibilityChange: true,
+
+			// Transition style
+			transition: 'slide', // none/fade/slide/convex/concave/zoom
+
+			// Transition speed
+			transitionSpeed: 'default', // default/fast/slow
+
+			// Transition style for full page slide backgrounds
+			backgroundTransition: 'fade', // none/fade/slide/convex/concave/zoom
+
+			// Parallax background image
+			parallaxBackgroundImage: '', // CSS syntax, e.g. "a.jpg"
+
+			// Parallax background size
+			parallaxBackgroundSize: '', // CSS syntax, e.g. "3000px 2000px"
+
+			// Amount of pixels to move the parallax background per slide step
+			parallaxBackgroundHorizontal: null,
+			parallaxBackgroundVertical: null,
+
+			// Number of slides away from the current that are visible
+			viewDistance: 3,
+
+			// Script dependencies to load
+			dependencies: []
+
+		},
+
+		// Flags if reveal.js is loaded (has dispatched the 'ready' event)
+		loaded = false,
+
+		// Flags if the overview mode is currently active
+		overview = false,
+
+		// The horizontal and vertical index of the currently active slide
+		indexh,
+		indexv,
+
+		// The previous and current slide HTML elements
+		previousSlide,
+		currentSlide,
+
+		previousBackground,
+
+		// Slides may hold a data-state attribute which we pick up and apply
+		// as a class to the body. This list contains the combined state of
+		// all current slides.
+		state = [],
+
+		// The current scale of the presentation (see width/height config)
+		scale = 1,
+
+		// CSS transform that is currently applied to the slides container,
+		// split into two groups
+		slidesTransform = { layout: '', overview: '' },
+
+		// Cached references to DOM elements
+		dom = {},
+
+		// Features supported by the browser, see #checkCapabilities()
+		features = {},
+
+		// Client is a mobile device, see #checkCapabilities()
+		isMobileDevice,
+
+		// Throttles mouse wheel navigation
+		lastMouseWheelStep = 0,
+
+		// Delays updates to the URL due to a Chrome thumbnailer bug
+		writeURLTimeout = 0,
+
+		// Flags if the interaction event listeners are bound
+		eventsAreBound = false,
+
+		// The current auto-slide duration
+		autoSlide = 0,
+
+		// Auto slide properties
+		autoSlidePlayer,
+		autoSlideTimeout = 0,
+		autoSlideStartTime = -1,
+		autoSlidePaused = false,
+
+		// Holds information about the currently ongoing touch input
+		touch = {
+			startX: 0,
+			startY: 0,
+			startSpan: 0,
+			startCount: 0,
+			captured: false,
+			threshold: 40
+		},
+
+		// Holds information about the keyboard shortcuts
+		keyboardShortcuts = {
+			'N  ,  SPACE':			'Next slide',
+			'P':					'Previous slide',
+			'←  ,  H':		'Navigate left',
+			'→  ,  L':		'Navigate right',
+			'↑  ,  K':		'Navigate up',
+			'↓  ,  J':		'Navigate down',
+			'Home':					'First slide',
+			'End':					'Last slide',
+			'B  ,  .':				'Pause',
+			'F':					'Fullscreen',
+			'ESC, O':				'Slide overview'
+		};
+
+	/**
+	 * Starts up the presentation if the client is capable.
+	 */
+	function initialize( options ) {
+
+		checkCapabilities();
+
+		if( !features.transforms2d && !features.transforms3d ) {
+			document.body.setAttribute( 'class', 'no-transforms' );
+
+			// Since JS won't be running any further, we load all lazy
+			// loading elements upfront
+			var images = toArray( document.getElementsByTagName( 'img' ) ),
+				iframes = toArray( document.getElementsByTagName( 'iframe' ) );
+
+			var lazyLoadable = images.concat( iframes );
+
+			for( var i = 0, len = lazyLoadable.length; i < len; i++ ) {
+				var element = lazyLoadable[i];
+				if( element.getAttribute( 'data-src' ) ) {
+					element.setAttribute( 'src', element.getAttribute( 'data-src' ) );
+					element.removeAttribute( 'data-src' );
+				}
+			}
+
+			// If the browser doesn't support core features we won't be
+			// using JavaScript to control the presentation
+			return;
+		}
+
+		// Cache references to key DOM elements
+		dom.wrapper = document.querySelector( '.reveal' );
+		dom.slides = document.querySelector( '.reveal .slides' );
+
+		// Force a layout when the whole page, incl fonts, has loaded
+		window.addEventListener( 'load', layout, false );
+
+		var query = Reveal.getQueryHash();
+
+		// Do not accept new dependencies via query config to avoid
+		// the potential of malicious script injection
+		if( typeof query['dependencies'] !== 'undefined' ) delete query['dependencies'];
+
+		// Copy options over to our config object
+		extend( config, options );
+		extend( config, query );
+
+		// Hide the address bar in mobile browsers
+		hideAddressBar();
+
+		// Loads the dependencies and continues to #start() once done
+		load();
+
+	}
+
+	/**
+	 * Inspect the client to see what it's capable of, this
+	 * should only happens once per runtime.
+	 */
+	function checkCapabilities() {
+
+		features.transforms3d = 'WebkitPerspective' in document.body.style ||
+								'MozPerspective' in document.body.style ||
+								'msPerspective' in document.body.style ||
+								'OPerspective' in document.body.style ||
+								'perspective' in document.body.style;
+
+		features.transforms2d = 'WebkitTransform' in document.body.style ||
+								'MozTransform' in document.body.style ||
+								'msTransform' in document.body.style ||
+								'OTransform' in document.body.style ||
+								'transform' in document.body.style;
+
+		features.requestAnimationFrameMethod = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame;
+		features.requestAnimationFrame = typeof features.requestAnimationFrameMethod === 'function';
+
+		features.canvas = !!document.createElement( 'canvas' ).getContext;
+
+		features.touch = !!( 'ontouchstart' in window );
+
+		// Transitions in the overview are disabled in desktop and
+		// mobile Safari due to lag
+		features.overviewTransitions = !/Version\/[\d\.]+.*Safari/.test( navigator.userAgent );
+
+		isMobileDevice = /(iphone|ipod|ipad|android)/gi.test( navigator.userAgent );
+
+	}
+
+    /**
+     * Loads the dependencies of reveal.js. Dependencies are
+     * defined via the configuration option 'dependencies'
+     * and will be loaded prior to starting/binding reveal.js.
+     * Some dependencies may have an 'async' flag, if so they
+     * will load after reveal.js has been started up.
+     */
+	function load() {
+
+		var scripts = [],
+			scriptsAsync = [],
+			scriptsToPreload = 0;
+
+		// Called once synchronous scripts finish loading
+		function proceed() {
+			if( scriptsAsync.length ) {
+				// Load asynchronous scripts
+				head.js.apply( null, scriptsAsync );
+			}
+
+			start();
+		}
+
+		function loadScript( s ) {
+			head.ready( s.src.match( /([\w\d_\-]*)\.?js$|[^\\\/]*$/i )[0], function() {
+				// Extension may contain callback functions
+				if( typeof s.callback === 'function' ) {
+					s.callback.apply( this );
+				}
+
+				if( --scriptsToPreload === 0 ) {
+					proceed();
+				}
+			});
+		}
+
+		for( var i = 0, len = config.dependencies.length; i < len; i++ ) {
+			var s = config.dependencies[i];
+
+			// Load if there's no condition or the condition is truthy
+			if( !s.condition || s.condition() ) {
+				if( s.async ) {
+					scriptsAsync.push( s.src );
+				}
+				else {
+					scripts.push( s.src );
+				}
+
+				loadScript( s );
+			}
+		}
+
+		if( scripts.length ) {
+			scriptsToPreload = scripts.length;
+
+			// Load synchronous scripts
+			head.js.apply( null, scripts );
+		}
+		else {
+			proceed();
+		}
+
+	}
+
+	/**
+	 * Starts up reveal.js by binding input events and navigating
+	 * to the current URL deeplink if there is one.
+	 */
+	function start() {
+
+		// Make sure we've got all the DOM elements we need
+		setupDOM();
+
+		// Listen to messages posted to this window
+		setupPostMessage();
+
+		// Prevent iframes from scrolling the slides out of view
+		setupIframeScrollPrevention();
+
+		// Resets all vertical slides so that only the first is visible
+		resetVerticalSlides();
+
+		// Updates the presentation to match the current configuration values
+		configure();
+
+		// Read the initial hash
+		readURL();
+
+		// Update all backgrounds
+		updateBackground( true );
+
+		// Notify listeners that the presentation is ready but use a 1ms
+		// timeout to ensure it's not fired synchronously after #initialize()
+		setTimeout( function() {
+			// Enable transitions now that we're loaded
+			dom.slides.classList.remove( 'no-transition' );
+
+			loaded = true;
+
+			dispatchEvent( 'ready', {
+				'indexh': indexh,
+				'indexv': indexv,
+				'currentSlide': currentSlide
+			} );
+		}, 1 );
+
+		// Special setup and config is required when printing to PDF
+		if( isPrintingPDF() ) {
+			removeEventListeners();
+
+			// The document needs to have loaded for the PDF layout
+			// measurements to be accurate
+			if( document.readyState === 'complete' ) {
+				setupPDF();
+			}
+			else {
+				window.addEventListener( 'load', setupPDF );
+			}
+		}
+
+	}
+
+	/**
+	 * Finds and stores references to DOM elements which are
+	 * required by the presentation. If a required element is
+	 * not found, it is created.
+	 */
+	function setupDOM() {
+
+		// Prevent transitions while we're loading
+		dom.slides.classList.add( 'no-transition' );
+
+		// Background element
+		dom.background = createSingletonNode( dom.wrapper, 'div', 'backgrounds', null );
+
+		// Progress bar
+		dom.progress = createSingletonNode( dom.wrapper, 'div', 'progress', '<span></span>' );
+		dom.progressbar = dom.progress.querySelector( 'span' );
+
+		// Arrow controls
+		createSingletonNode( dom.wrapper, 'aside', 'controls',
+			'<button class="navigate-left" aria-label="previous slide"></button>' +
+			'<button class="navigate-right" aria-label="next slide"></button>' +
+			'<button class="navigate-up" aria-label="above slide"></button>' +
+			'<button class="navigate-down" aria-label="below slide"></button>' );
+
+		// Slide number
+		dom.slideNumber = createSingletonNode( dom.wrapper, 'div', 'slide-number', '' );
+
+		// Element containing notes that are visible to the audience
+		dom.speakerNotes = createSingletonNode( dom.wrapper, 'div', 'speaker-notes', null );
+		dom.speakerNotes.setAttribute( 'data-prevent-swipe', '' );
+
+		// Overlay graphic which is displayed during the paused mode
+		createSingletonNode( dom.wrapper, 'div', 'pause-overlay', null );
+
+		// Cache references to elements
+		dom.controls = document.querySelector( '.reveal .controls' );
+		dom.theme = document.querySelector( '#theme' );
+
+		dom.wrapper.setAttribute( 'role', 'application' );
+
+		// There can be multiple instances of controls throughout the page
+		dom.controlsLeft = toArray( document.querySelectorAll( '.navigate-left' ) );
+		dom.controlsRight = toArray( document.querySelectorAll( '.navigate-right' ) );
+		dom.controlsUp = toArray( document.querySelectorAll( '.navigate-up' ) );
+		dom.controlsDown = toArray( document.querySelectorAll( '.navigate-down' ) );
+		dom.controlsPrev = toArray( document.querySelectorAll( '.navigate-prev' ) );
+		dom.controlsNext = toArray( document.querySelectorAll( '.navigate-next' ) );
+
+		dom.statusDiv = createStatusDiv();
+	}
+
+	/**
+	 * Creates a hidden div with role aria-live to announce the
+	 * current slide content. Hide the div off-screen to make it
+	 * available only to Assistive Technologies.
+	 */
+	function createStatusDiv() {
+
+		var statusDiv = document.getElementById( 'aria-status-div' );
+		if( !statusDiv ) {
+			statusDiv = document.createElement( 'div' );
+			statusDiv.style.position = 'absolute';
+			statusDiv.style.height = '1px';
+			statusDiv.style.width = '1px';
+			statusDiv.style.overflow ='hidden';
+			statusDiv.style.clip = 'rect( 1px, 1px, 1px, 1px )';
+			statusDiv.setAttribute( 'id', 'aria-status-div' );
+			statusDiv.setAttribute( 'aria-live', 'polite' );
+			statusDiv.setAttribute( 'aria-atomic','true' );
+			dom.wrapper.appendChild( statusDiv );
+		}
+		return statusDiv;
+
+	}
+
+	/**
+	 * Configures the presentation for printing to a static
+	 * PDF.
+	 */
+	function setupPDF() {
+
+		var slideSize = getComputedSlideSize( window.innerWidth, window.innerHeight );
+
+		// Dimensions of the PDF pages
+		var pageWidth = Math.floor( slideSize.width * ( 1 + config.margin ) ),
+			pageHeight = Math.floor( slideSize.height * ( 1 + config.margin  ) );
+
+		// Dimensions of slides within the pages
+		var slideWidth = slideSize.width,
+			slideHeight = slideSize.height;
+
+		// Let the browser know what page size we want to print
+		injectStyleSheet( '@page{size:'+ pageWidth +'px '+ pageHeight +'px; margin: 0;}' );
+
+		// Limit the size of certain elements to the dimensions of the slide
+		injectStyleSheet( '.reveal section>img, .reveal section>video, .reveal section>iframe{max-width: '+ slideWidth +'px; max-height:'+ slideHeight +'px}' );
+
+		document.body.classList.add( 'print-pdf' );
+		document.body.style.width = pageWidth + 'px';
+		document.body.style.height = pageHeight + 'px';
+
+		// Add each slide's index as attributes on itself, we need these
+		// indices to generate slide numbers below
+		toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( hslide, h ) {
+			hslide.setAttribute( 'data-index-h', h );
+
+			if( hslide.classList.contains( 'stack' ) ) {
+				toArray( hslide.querySelectorAll( 'section' ) ).forEach( function( vslide, v ) {
+					vslide.setAttribute( 'data-index-h', h );
+					vslide.setAttribute( 'data-index-v', v );
+				} );
+			}
+		} );
+
+		// Slide and slide background layout
+		toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
+
+			// Vertical stacks are not centred since their section
+			// children will be
+			if( slide.classList.contains( 'stack' ) === false ) {
+				// Center the slide inside of the page, giving the slide some margin
+				var left = ( pageWidth - slideWidth ) / 2,
+					top = ( pageHeight - slideHeight ) / 2;
+
+				var contentHeight = getAbsoluteHeight( slide );
+				var numberOfPages = Math.max( Math.ceil( contentHeight / pageHeight ), 1 );
+
+				// Center slides vertically
+				if( numberOfPages === 1 && config.center || slide.classList.contains( 'center' ) ) {
+					top = Math.max( ( pageHeight - contentHeight ) / 2, 0 );
+				}
+
+				// Position the slide inside of the page
+				slide.style.left = left + 'px';
+				slide.style.top = top + 'px';
+				slide.style.width = slideWidth + 'px';
+
+				// TODO Backgrounds need to be multiplied when the slide
+				// stretches over multiple pages
+				var background = slide.querySelector( '.slide-background' );
+				if( background ) {
+					background.style.width = pageWidth + 'px';
+					background.style.height = ( pageHeight * numberOfPages ) + 'px';
+					background.style.top = -top + 'px';
+					background.style.left = -left + 'px';
+				}
+
+				// Inject notes if `showNotes` is enabled
+				if( config.showNotes ) {
+					var notes = getSlideNotes( slide );
+					if( notes ) {
+						var notesSpacing = 8;
+						var notesElement = document.createElement( 'div' );
+						notesElement.classList.add( 'speaker-notes' );
+						notesElement.classList.add( 'speaker-notes-pdf' );
+						notesElement.innerHTML = notes;
+						notesElement.style.left = ( notesSpacing - left ) + 'px';
+						notesElement.style.bottom = ( notesSpacing - top ) + 'px';
+						notesElement.style.width = ( pageWidth - notesSpacing*2 ) + 'px';
+						slide.appendChild( notesElement );
+					}
+				}
+
+				// Inject slide numbers if `slideNumbers` are enabled
+				if( config.slideNumber ) {
+					var slideNumberH = parseInt( slide.getAttribute( 'data-index-h' ), 10 ) + 1,
+						slideNumberV = parseInt( slide.getAttribute( 'data-index-v' ), 10 ) + 1;
+
+					var numberElement = document.createElement( 'div' );
+					numberElement.classList.add( 'slide-number' );
+					numberElement.classList.add( 'slide-number-pdf' );
+					numberElement.innerHTML = formatSlideNumber( slideNumberH, '.', slideNumberV );
+					background.appendChild( numberElement );
+				}
+			}
+
+		} );
+
+		// Show all fragments
+		toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR + ' .fragment' ) ).forEach( function( fragment ) {
+			fragment.classList.add( 'visible' );
+		} );
+
+	}
+
+	/**
+	 * This is an unfortunate necessity. Iframes can trigger the
+	 * parent window to scroll, for example by focusing an input.
+	 * This scrolling can not be prevented by hiding overflow in
+	 * CSS so we have to resort to repeatedly checking if the
+	 * browser has decided to offset our slides :(
+	 */
+	function setupIframeScrollPrevention() {
+
+		if( dom.slides.querySelector( 'iframe' ) ) {
+			setInterval( function() {
+				if( dom.wrapper.scrollTop !== 0 || dom.wrapper.scrollLeft !== 0 ) {
+					dom.wrapper.scrollTop = 0;
+					dom.wrapper.scrollLeft = 0;
+				}
+			}, 500 );
+		}
+
+	}
+
+	/**
+	 * Creates an HTML element and returns a reference to it.
+	 * If the element already exists the existing instance will
+	 * be returned.
+	 */
+	function createSingletonNode( container, tagname, classname, innerHTML ) {
+
+		// Find all nodes matching the description
+		var nodes = container.querySelectorAll( '.' + classname );
+
+		// Check all matches to find one which is a direct child of
+		// the specified container
+		for( var i = 0; i < nodes.length; i++ ) {
+			var testNode = nodes[i];
+			if( testNode.parentNode === container ) {
+				return testNode;
+			}
+		}
+
+		// If no node was found, create it now
+		var node = document.createElement( tagname );
+		node.classList.add( classname );
+		if( typeof innerHTML === 'string' ) {
+			node.innerHTML = innerHTML;
+		}
+		container.appendChild( node );
+
+		return node;
+
+	}
+
+	/**
+	 * Creates the slide background elements and appends them
+	 * to the background container. One element is created per
+	 * slide no matter if the given slide has visible background.
+	 */
+	function createBackgrounds() {
+
+		var printMode = isPrintingPDF();
+
+		// Clear prior backgrounds
+		dom.background.innerHTML = '';
+		dom.background.classList.add( 'no-transition' );
+
+		// Iterate over all horizontal slides
+		toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( slideh ) {
+
+			var backgroundStack;
+
+			if( printMode ) {
+				backgroundStack = createBackground( slideh, slideh );
+			}
+			else {
+				backgroundStack = createBackground( slideh, dom.background );
+			}
+
+			// Iterate over all vertical slides
+			toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) {
+
+				if( printMode ) {
+					createBackground( slidev, slidev );
+				}
+				else {
+					createBackground( slidev, backgroundStack );
+				}
+
+				backgroundStack.classList.add( 'stack' );
+
+			} );
+
+		} );
+
+		// Add parallax background if specified
+		if( config.parallaxBackgroundImage ) {
+
+			dom.background.style.backgroundImage = 'url("' + config.parallaxBackgroundImage + '")';
+			dom.background.style.backgroundSize = config.parallaxBackgroundSize;
+
+			// Make sure the below properties are set on the element - these properties are
+			// needed for proper transitions to be set on the element via CSS. To remove
+			// annoying background slide-in effect when the presentation starts, apply
+			// these properties after short time delay
+			setTimeout( function() {
+				dom.wrapper.classList.add( 'has-parallax-background' );
+			}, 1 );
+
+		}
+		else {
+
+			dom.background.style.backgroundImage = '';
+			dom.wrapper.classList.remove( 'has-parallax-background' );
+
+		}
+
+	}
+
+	/**
+	 * Creates a background for the given slide.
+	 *
+	 * @param {HTMLElement} slide
+	 * @param {HTMLElement} container The element that the background
+	 * should be appended to
+	 */
+	function createBackground( slide, container ) {
+
+		var data = {
+			background: slide.getAttribute( 'data-background' ),
+			backgroundSize: slide.getAttribute( 'data-background-size' ),
+			backgroundImage: slide.getAttribute( 'data-background-image' ),
+			backgroundVideo: slide.getAttribute( 'data-background-video' ),
+			backgroundIframe: slide.getAttribute( 'data-background-iframe' ),
+			backgroundColor: slide.getAttribute( 'data-background-color' ),
+			backgroundRepeat: slide.getAttribute( 'data-background-repeat' ),
+			backgroundPosition: slide.getAttribute( 'data-background-position' ),
+			backgroundTransition: slide.getAttribute( 'data-background-transition' )
+		};
+
+		var element = document.createElement( 'div' );
+
+		// Carry over custom classes from the slide to the background
+		element.className = 'slide-background ' + slide.className.replace( /present|past|future/, '' );
+
+		if( data.background ) {
+			// Auto-wrap image urls in url(...)
+			if( /^(http|file|\/\/)/gi.test( data.background ) || /\.(svg|png|jpg|jpeg|gif|bmp)$/gi.test( data.background ) ) {
+				slide.setAttribute( 'data-background-image', data.background );
+			}
+			else {
+				element.style.background = data.background;
+			}
+		}
+
+		// Create a hash for this combination of background settings.
+		// This is used to determine when two slide backgrounds are
+		// the same.
+		if( data.background || data.backgroundColor || data.backgroundImage || data.backgroundVideo || data.backgroundIframe ) {
+			element.setAttribute( 'data-background-hash', data.background +
+															data.backgroundSize +
+															data.backgroundImage +
+															data.backgroundVideo +
+															data.backgroundIframe +
+															data.backgroundColor +
+															data.backgroundRepeat +
+															data.backgroundPosition +
+															data.backgroundTransition );
+		}
+
+		// Additional and optional background properties
+		if( data.backgroundSize ) element.style.backgroundSize = data.backgroundSize;
+		if( data.backgroundColor ) element.style.backgroundColor = data.backgroundColor;
+		if( data.backgroundRepeat ) element.style.backgroundRepeat = data.backgroundRepeat;
+		if( data.backgroundPosition ) element.style.backgroundPosition = data.backgroundPosition;
+		if( data.backgroundTransition ) element.setAttribute( 'data-background-transition', data.backgroundTransition );
+
+		container.appendChild( element );
+
+		// If backgrounds are being recreated, clear old classes
+		slide.classList.remove( 'has-dark-background' );
+		slide.classList.remove( 'has-light-background' );
+
+		// If this slide has a background color, add a class that
+		// signals if it is light or dark. If the slide has no background
+		// color, no class will be set
+		var computedBackgroundColor = window.getComputedStyle( element ).backgroundColor;
+		if( computedBackgroundColor ) {
+			var rgb = colorToRgb( computedBackgroundColor );
+
+			// Ignore fully transparent backgrounds. Some browsers return
+			// rgba(0,0,0,0) when reading the computed background color of
+			// an element with no background
+			if( rgb && rgb.a !== 0 ) {
+				if( colorBrightness( computedBackgroundColor ) < 128 ) {
+					slide.classList.add( 'has-dark-background' );
+				}
+				else {
+					slide.classList.add( 'has-light-background' );
+				}
+			}
+		}
+
+		return element;
+
+	}
+
+	/**
+	 * Registers a listener to postMessage events, this makes it
+	 * possible to call all reveal.js API methods from another
+	 * window. For example:
+	 *
+	 * revealWindow.postMessage( JSON.stringify({
+	 *   method: 'slide',
+	 *   args: [ 2 ]
+	 * }), '*' );
+	 */
+	function setupPostMessage() {
+
+		if( config.postMessage ) {
+			window.addEventListener( 'message', function ( event ) {
+				var data = event.data;
+
+				// Make sure we're dealing with JSON
+				if( typeof data === 'string' && data.charAt( 0 ) === '{' && data.charAt( data.length - 1 ) === '}' ) {
+					data = JSON.parse( data );
+
+					// Check if the requested method can be found
+					if( data.method && typeof Reveal[data.method] === 'function' ) {
+						Reveal[data.method].apply( Reveal, data.args );
+					}
+				}
+			}, false );
+		}
+
+	}
+
+	/**
+	 * Applies the configuration settings from the config
+	 * object. May be called multiple times.
+	 */
+	function configure( options ) {
+
+		var numberOfSlides = dom.wrapper.querySelectorAll( SLIDES_SELECTOR ).length;
+
+		dom.wrapper.classList.remove( config.transition );
+
+		// New config options may be passed when this method
+		// is invoked through the API after initialization
+		if( typeof options === 'object' ) extend( config, options );
+
+		// Force linear transition based on browser capabilities
+		if( features.transforms3d === false ) config.transition = 'linear';
+
+		dom.wrapper.classList.add( config.transition );
+
+		dom.wrapper.setAttribute( 'data-transition-speed', config.transitionSpeed );
+		dom.wrapper.setAttribute( 'data-background-transition', config.backgroundTransition );
+
+		dom.controls.style.display = config.controls ? 'block' : 'none';
+		dom.progress.style.display = config.progress ? 'block' : 'none';
+		dom.slideNumber.style.display = config.slideNumber && !isPrintingPDF() ? 'block' : 'none';
+
+		if( config.rtl ) {
+			dom.wrapper.classList.add( 'rtl' );
+		}
+		else {
+			dom.wrapper.classList.remove( 'rtl' );
+		}
+
+		if( config.center ) {
+			dom.wrapper.classList.add( 'center' );
+		}
+		else {
+			dom.wrapper.classList.remove( 'center' );
+		}
+
+		// Exit the paused mode if it was configured off
+		if( config.pause === false ) {
+			resume();
+		}
+
+		if( config.showNotes ) {
+			dom.speakerNotes.classList.add( 'visible' );
+		}
+		else {
+			dom.speakerNotes.classList.remove( 'visible' );
+		}
+
+		if( config.mouseWheel ) {
+			document.addEventListener( 'DOMMouseScroll', onDocumentMouseScroll, false ); // FF
+			document.addEventListener( 'mousewheel', onDocumentMouseScroll, false );
+		}
+		else {
+			document.removeEventListener( 'DOMMouseScroll', onDocumentMouseScroll, false ); // FF
+			document.removeEventListener( 'mousewheel', onDocumentMouseScroll, false );
+		}
+
+		// Rolling 3D links
+		if( config.rollingLinks ) {
+			enableRollingLinks();
+		}
+		else {
+			disableRollingLinks();
+		}
+
+		// Iframe link previews
+		if( config.previewLinks ) {
+			enablePreviewLinks();
+		}
+		else {
+			disablePreviewLinks();
+			enablePreviewLinks( '[data-preview-link]' );
+		}
+
+		// Remove existing auto-slide controls
+		if( autoSlidePlayer ) {
+			autoSlidePlayer.destroy();
+			autoSlidePlayer = null;
+		}
+
+		// Generate auto-slide controls if needed
+		if( numberOfSlides > 1 && config.autoSlide && config.autoSlideStoppable && features.canvas && features.requestAnimationFrame ) {
+			autoSlidePlayer = new Playback( dom.wrapper, function() {
+				return Math.min( Math.max( ( Date.now() - autoSlideStartTime ) / autoSlide, 0 ), 1 );
+			} );
+
+			autoSlidePlayer.on( 'click', onAutoSlidePlayerClick );
+			autoSlidePaused = false;
+		}
+
+		// When fragments are turned off they should be visible
+		if( config.fragments === false ) {
+			toArray( dom.slides.querySelectorAll( '.fragment' ) ).forEach( function( element ) {
+				element.classList.add( 'visible' );
+				element.classList.remove( 'current-fragment' );
+			} );
+		}
+
+		sync();
+
+	}
+
+	/**
+	 * Binds all event listeners.
+	 */
+	function addEventListeners() {
+
+		eventsAreBound = true;
+
+		window.addEventListener( 'hashchange', onWindowHashChange, false );
+		window.addEventListener( 'resize', onWindowResize, false );
+
+		if( config.touch ) {
+			dom.wrapper.addEventListener( 'touchstart', onTouchStart, false );
+			dom.wrapper.addEventListener( 'touchmove', onTouchMove, false );
+			dom.wrapper.addEventListener( 'touchend', onTouchEnd, false );
+
+			// Support pointer-style touch interaction as well
+			if( window.navigator.pointerEnabled ) {
+				// IE 11 uses un-prefixed version of pointer events
+				dom.wrapper.addEventListener( 'pointerdown', onPointerDown, false );
+				dom.wrapper.addEventListener( 'pointermove', onPointerMove, false );
+				dom.wrapper.addEventListener( 'pointerup', onPointerUp, false );
+			}
+			else if( window.navigator.msPointerEnabled ) {
+				// IE 10 uses prefixed version of pointer events
+				dom.wrapper.addEventListener( 'MSPointerDown', onPointerDown, false );
+				dom.wrapper.addEventListener( 'MSPointerMove', onPointerMove, false );
+				dom.wrapper.addEventListener( 'MSPointerUp', onPointerUp, false );
+			}
+		}
+
+		if( config.keyboard ) {
+			document.addEventListener( 'keydown', onDocumentKeyDown, false );
+			document.addEventListener( 'keypress', onDocumentKeyPress, false );
+		}
+
+		if( config.progress && dom.progress ) {
+			dom.progress.addEventListener( 'click', onProgressClicked, false );
+		}
+
+		if( config.focusBodyOnPageVisibilityChange ) {
+			var visibilityChange;
+
+			if( 'hidden' in document ) {
+				visibilityChange = 'visibilitychange';
+			}
+			else if( 'msHidden' in document ) {
+				visibilityChange = 'msvisibilitychange';
+			}
+			else if( 'webkitHidden' in document ) {
+				visibilityChange = 'webkitvisibilitychange';
+			}
+
+			if( visibilityChange ) {
+				document.addEventListener( visibilityChange, onPageVisibilityChange, false );
+			}
+		}
+
+		// Listen to both touch and click events, in case the device
+		// supports both
+		var pointerEvents = [ 'touchstart', 'click' ];
+
+		// Only support touch for Android, fixes double navigations in
+		// stock browser
+		if( navigator.userAgent.match( /android/gi ) ) {
+			pointerEvents = [ 'touchstart' ];
+		}
+
+		pointerEvents.forEach( function( eventName ) {
+			dom.controlsLeft.forEach( function( el ) { el.addEventListener( eventName, onNavigateLeftClicked, false ); } );
+			dom.controlsRight.forEach( function( el ) { el.addEventListener( eventName, onNavigateRightClicked, false ); } );
+			dom.controlsUp.forEach( function( el ) { el.addEventListener( eventName, onNavigateUpClicked, false ); } );
+			dom.controlsDown.forEach( function( el ) { el.addEventListener( eventName, onNavigateDownClicked, false ); } );
+			dom.controlsPrev.forEach( function( el ) { el.addEventListener( eventName, onNavigatePrevClicked, false ); } );
+			dom.controlsNext.forEach( function( el ) { el.addEventListener( eventName, onNavigateNextClicked, false ); } );
+		} );
+
+	}
+
+	/**
+	 * Unbinds all event listeners.
+	 */
+	function removeEventListeners() {
+
+		eventsAreBound = false;
+
+		document.removeEventListener( 'keydown', onDocumentKeyDown, false );
+		document.removeEventListener( 'keypress', onDocumentKeyPress, false );
+		window.removeEventListener( 'hashchange', onWindowHashChange, false );
+		window.removeEventListener( 'resize', onWindowResize, false );
+
+		dom.wrapper.removeEventListener( 'touchstart', onTouchStart, false );
+		dom.wrapper.removeEventListener( 'touchmove', onTouchMove, false );
+		dom.wrapper.removeEventListener( 'touchend', onTouchEnd, false );
+
+		// IE11
+		if( window.navigator.pointerEnabled ) {
+			dom.wrapper.removeEventListener( 'pointerdown', onPointerDown, false );
+			dom.wrapper.removeEventListener( 'pointermove', onPointerMove, false );
+			dom.wrapper.removeEventListener( 'pointerup', onPointerUp, false );
+		}
+		// IE10
+		else if( window.navigator.msPointerEnabled ) {
+			dom.wrapper.removeEventListener( 'MSPointerDown', onPointerDown, false );
+			dom.wrapper.removeEventListener( 'MSPointerMove', onPointerMove, false );
+			dom.wrapper.removeEventListener( 'MSPointerUp', onPointerUp, false );
+		}
+
+		if ( config.progress && dom.progress ) {
+			dom.progress.removeEventListener( 'click', onProgressClicked, false );
+		}
+
+		[ 'touchstart', 'click' ].forEach( function( eventName ) {
+			dom.controlsLeft.forEach( function( el ) { el.removeEventListener( eventName, onNavigateLeftClicked, false ); } );
+			dom.controlsRight.forEach( function( el ) { el.removeEventListener( eventName, onNavigateRightClicked, false ); } );
+			dom.controlsUp.forEach( function( el ) { el.removeEventListener( eventName, onNavigateUpClicked, false ); } );
+			dom.controlsDown.forEach( function( el ) { el.removeEventListener( eventName, onNavigateDownClicked, false ); } );
+			dom.controlsPrev.forEach( function( el ) { el.removeEventListener( eventName, onNavigatePrevClicked, false ); } );
+			dom.controlsNext.forEach( function( el ) { el.removeEventListener( eventName, onNavigateNextClicked, false ); } );
+		} );
+
+	}
+
+	/**
+	 * Extend object a with the properties of object b.
+	 * If there's a conflict, object b takes precedence.
+	 */
+	function extend( a, b ) {
+
+		for( var i in b ) {
+			a[ i ] = b[ i ];
+		}
+
+	}
+
+	/**
+	 * Converts the target object to an array.
+	 */
+	function toArray( o ) {
+
+		return Array.prototype.slice.call( o );
+
+	}
+
+	/**
+	 * Utility for deserializing a value.
+	 */
+	function deserialize( value ) {
+
+		if( typeof value === 'string' ) {
+			if( value === 'null' ) return null;
+			else if( value === 'true' ) return true;
+			else if( value === 'false' ) return false;
+			else if( value.match( /^\d+$/ ) ) return parseFloat( value );
+		}
+
+		return value;
+
+	}
+
+	/**
+	 * Measures the distance in pixels between point a
+	 * and point b.
+	 *
+	 * @param {Object} a point with x/y properties
+	 * @param {Object} b point with x/y properties
+	 */
+	function distanceBetween( a, b ) {
+
+		var dx = a.x - b.x,
+			dy = a.y - b.y;
+
+		return Math.sqrt( dx*dx + dy*dy );
+
+	}
+
+	/**
+	 * Applies a CSS transform to the target element.
+	 */
+	function transformElement( element, transform ) {
+
+		element.style.WebkitTransform = transform;
+		element.style.MozTransform = transform;
+		element.style.msTransform = transform;
+		element.style.transform = transform;
+
+	}
+
+	/**
+	 * Applies CSS transforms to the slides container. The container
+	 * is transformed from two separate sources: layout and the overview
+	 * mode.
+	 */
+	function transformSlides( transforms ) {
+
+		// Pick up new transforms from arguments
+		if( typeof transforms.layout === 'string' ) slidesTransform.layout = transforms.layout;
+		if( typeof transforms.overview === 'string' ) slidesTransform.overview = transforms.overview;
+
+		// Apply the transforms to the slides container
+		if( slidesTransform.layout ) {
+			transformElement( dom.slides, slidesTransform.layout + ' ' + slidesTransform.overview );
+		}
+		else {
+			transformElement( dom.slides, slidesTransform.overview );
+		}
+
+	}
+
+	/**
+	 * Injects the given CSS styles into the DOM.
+	 */
+	function injectStyleSheet( value ) {
+
+		var tag = document.createElement( 'style' );
+		tag.type = 'text/css';
+		if( tag.styleSheet ) {
+			tag.styleSheet.cssText = value;
+		}
+		else {
+			tag.appendChild( document.createTextNode( value ) );
+		}
+		document.getElementsByTagName( 'head' )[0].appendChild( tag );
+
+	}
+
+	/**
+	 * Converts various color input formats to an {r:0,g:0,b:0} object.
+	 *
+	 * @param {String} color The string representation of a color,
+	 * the following formats are supported:
+	 * - #000
+	 * - #000000
+	 * - rgb(0,0,0)
+	 */
+	function colorToRgb( color ) {
+
+		var hex3 = color.match( /^#([0-9a-f]{3})$/i );
+		if( hex3 && hex3[1] ) {
+			hex3 = hex3[1];
+			return {
+				r: parseInt( hex3.charAt( 0 ), 16 ) * 0x11,
+				g: parseInt( hex3.charAt( 1 ), 16 ) * 0x11,
+				b: parseInt( hex3.charAt( 2 ), 16 ) * 0x11
+			};
+		}
+
+		var hex6 = color.match( /^#([0-9a-f]{6})$/i );
+		if( hex6 && hex6[1] ) {
+			hex6 = hex6[1];
+			return {
+				r: parseInt( hex6.substr( 0, 2 ), 16 ),
+				g: parseInt( hex6.substr( 2, 2 ), 16 ),
+				b: parseInt( hex6.substr( 4, 2 ), 16 )
+			};
+		}
+
+		var rgb = color.match( /^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i );
+		if( rgb ) {
+			return {
+				r: parseInt( rgb[1], 10 ),
+				g: parseInt( rgb[2], 10 ),
+				b: parseInt( rgb[3], 10 )
+			};
+		}
+
+		var rgba = color.match( /^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i );
+		if( rgba ) {
+			return {
+				r: parseInt( rgba[1], 10 ),
+				g: parseInt( rgba[2], 10 ),
+				b: parseInt( rgba[3], 10 ),
+				a: parseFloat( rgba[4] )
+			};
+		}
+
+		return null;
+
+	}
+
+	/**
+	 * Calculates brightness on a scale of 0-255.
+	 *
+	 * @param color See colorStringToRgb for supported formats.
+	 */
+	function colorBrightness( color ) {
+
+		if( typeof color === 'string' ) color = colorToRgb( color );
+
+		if( color ) {
+			return ( color.r * 299 + color.g * 587 + color.b * 114 ) / 1000;
+		}
+
+		return null;
+
+	}
+
+	/**
+	 * Retrieves the height of the given element by looking
+	 * at the position and height of its immediate children.
+	 */
+	function getAbsoluteHeight( element ) {
+
+		var height = 0;
+
+		if( element ) {
+			var absoluteChildren = 0;
+
+			toArray( element.childNodes ).forEach( function( child ) {
+
+				if( typeof child.offsetTop === 'number' && child.style ) {
+					// Count # of abs children
+					if( window.getComputedStyle( child ).position === 'absolute' ) {
+						absoluteChildren += 1;
+					}
+
+					height = Math.max( height, child.offsetTop + child.offsetHeight );
+				}
+
+			} );
+
+			// If there are no absolute children, use offsetHeight
+			if( absoluteChildren === 0 ) {
+				height = element.offsetHeight;
+			}
+
+		}
+
+		return height;
+
+	}
+
+	/**
+	 * Returns the remaining height within the parent of the
+	 * target element.
+	 *
+	 * remaining height = [ configured parent height ] - [ current parent height ]
+	 */
+	function getRemainingHeight( element, height ) {
+
+		height = height || 0;
+
+		if( element ) {
+			var newHeight, oldHeight = element.style.height;
+
+			// Change the .stretch element height to 0 in order find the height of all
+			// the other elements
+			element.style.height = '0px';
+			newHeight = height - element.parentNode.offsetHeight;
+
+			// Restore the old height, just in case
+			element.style.height = oldHeight + 'px';
+
+			return newHeight;
+		}
+
+		return height;
+
+	}
+
+	/**
+	 * Checks if this instance is being used to print a PDF.
+	 */
+	function isPrintingPDF() {
+
+		return ( /print-pdf/gi ).test( window.location.search );
+
+	}
+
+	/**
+	 * Hides the address bar if we're on a mobile device.
+	 */
+	function hideAddressBar() {
+
+		if( config.hideAddressBar && isMobileDevice ) {
+			// Events that should trigger the address bar to hide
+			window.addEventListener( 'load', removeAddressBar, false );
+			window.addEventListener( 'orientationchange', removeAddressBar, false );
+		}
+
+	}
+
+	/**
+	 * Causes the address bar to hide on mobile devices,
+	 * more vertical space ftw.
+	 */
+	function removeAddressBar() {
+
+		setTimeout( function() {
+			window.scrollTo( 0, 1 );
+		}, 10 );
+
+	}
+
+	/**
+	 * Dispatches an event of the specified type from the
+	 * reveal DOM element.
+	 */
+	function dispatchEvent( type, args ) {
+
+		var event = document.createEvent( 'HTMLEvents', 1, 2 );
+		event.initEvent( type, true, true );
+		extend( event, args );
+		dom.wrapper.dispatchEvent( event );
+
+		// If we're in an iframe, post each reveal.js event to the
+		// parent window. Used by the notes plugin
+		if( config.postMessageEvents && window.parent !== window.self ) {
+			window.parent.postMessage( JSON.stringify({ namespace: 'reveal', eventName: type, state: getState() }), '*' );
+		}
+
+	}
+
+	/**
+	 * Wrap all links in 3D goodness.
+	 */
+	function enableRollingLinks() {
+
+		if( features.transforms3d && !( 'msPerspective' in document.body.style ) ) {
+			var anchors = dom.wrapper.querySelectorAll( SLIDES_SELECTOR + ' a' );
+
+			for( var i = 0, len = anchors.length; i < len; i++ ) {
+				var anchor = anchors[i];
+
+				if( anchor.textContent && !anchor.querySelector( '*' ) && ( !anchor.className || !anchor.classList.contains( anchor, 'roll' ) ) ) {
+					var span = document.createElement('span');
+					span.setAttribute('data-title', anchor.text);
+					span.innerHTML = anchor.innerHTML;
+
+					anchor.classList.add( 'roll' );
+					anchor.innerHTML = '';
+					anchor.appendChild(span);
+				}
+			}
+		}
+
+	}
+
+	/**
+	 * Unwrap all 3D links.
+	 */
+	function disableRollingLinks() {
+
+		var anchors = dom.wrapper.querySelectorAll( SLIDES_SELECTOR + ' a.roll' );
+
+		for( var i = 0, len = anchors.length; i < len; i++ ) {
+			var anchor = anchors[i];
+			var span = anchor.querySelector( 'span' );
+
+			if( span ) {
+				anchor.classList.remove( 'roll' );
+				anchor.innerHTML = span.innerHTML;
+			}
+		}
+
+	}
+
+	/**
+	 * Bind preview frame links.
+	 */
+	function enablePreviewLinks( selector ) {
+
+		var anchors = toArray( document.querySelectorAll( selector ? selector : 'a' ) );
+
+		anchors.forEach( function( element ) {
+			if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) {
+				element.addEventListener( 'click', onPreviewLinkClicked, false );
+			}
+		} );
+
+	}
+
+	/**
+	 * Unbind preview frame links.
+	 */
+	function disablePreviewLinks() {
+
+		var anchors = toArray( document.querySelectorAll( 'a' ) );
+
+		anchors.forEach( function( element ) {
+			if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) {
+				element.removeEventListener( 'click', onPreviewLinkClicked, false );
+			}
+		} );
+
+	}
+
+	/**
+	 * Opens a preview window for the target URL.
+	 */
+	function showPreview( url ) {
+
+		closeOverlay();
+
+		dom.overlay = document.createElement( 'div' );
+		dom.overlay.classList.add( 'overlay' );
+		dom.overlay.classList.add( 'overlay-preview' );
+		dom.wrapper.appendChild( dom.overlay );
+
+		dom.overlay.innerHTML = [
+			'<header>',
+				'<a class="close" href="#"><span class="icon"></span></a>',
+				'<a class="external" href="'+ url +'" target="_blank"><span class="icon"></span></a>',
+			'</header>',
+			'<div class="spinner"></div>',
+			'<div class="viewport">',
+				'<iframe src="'+ url +'"></iframe>',
+			'</div>'
+		].join('');
+
+		dom.overlay.querySelector( 'iframe' ).addEventListener( 'load', function( event ) {
+			dom.overlay.classList.add( 'loaded' );
+		}, false );
+
+		dom.overlay.querySelector( '.close' ).addEventListener( 'click', function( event ) {
+			closeOverlay();
+			event.preventDefault();
+		}, false );
+
+		dom.overlay.querySelector( '.external' ).addEventListener( 'click', function( event ) {
+			closeOverlay();
+		}, false );
+
+		setTimeout( function() {
+			dom.overlay.classList.add( 'visible' );
+		}, 1 );
+
+	}
+
+	/**
+	 * Opens a overlay window with help material.
+	 */
+	function showHelp() {
+
+		if( config.help ) {
+
+			closeOverlay();
+
+			dom.overlay = document.createElement( 'div' );
+			dom.overlay.classList.add( 'overlay' );
+			dom.overlay.classList.add( 'overlay-help' );
+			dom.wrapper.appendChild( dom.overlay );
+
+			var html = '<p class="title">Keyboard Shortcuts</p><br/>';
+
+			html += '<table><th>KEY</th><th>ACTION</th>';
+			for( var key in keyboardShortcuts ) {
+				html += '<tr><td>' + key + '</td><td>' + keyboardShortcuts[ key ] + '</td></tr>';
+			}
+
+			html += '</table>';
+
+			dom.overlay.innerHTML = [
+				'<header>',
+					'<a class="close" href="#"><span class="icon"></span></a>',
+				'</header>',
+				'<div class="viewport">',
+					'<div class="viewport-inner">'+ html +'</div>',
+				'</div>'
+			].join('');
+
+			dom.overlay.querySelector( '.close' ).addEventListener( 'click', function( event ) {
+				closeOverlay();
+				event.preventDefault();
+			}, false );
+
+			setTimeout( function() {
+				dom.overlay.classList.add( 'visible' );
+			}, 1 );
+
+		}
+
+	}
+
+	/**
+	 * Closes any currently open overlay.
+	 */
+	function closeOverlay() {
+
+		if( dom.overlay ) {
+			dom.overlay.parentNode.removeChild( dom.overlay );
+			dom.overlay = null;
+		}
+
+	}
+
+	/**
+	 * Applies JavaScript-controlled layout rules to the
+	 * presentation.
+	 */
+	function layout() {
+
+		if( dom.wrapper && !isPrintingPDF() ) {
+
+			var size = getComputedSlideSize();
+
+			var slidePadding = 20; // TODO Dig this out of DOM
+
+			// Layout the contents of the slides
+			layoutSlideContents( config.width, config.height, slidePadding );
+
+			dom.slides.style.width = size.width + 'px';
+			dom.slides.style.height = size.height + 'px';
+
+			// Determine scale of content to fit within available space
+			scale = Math.min( size.presentationWidth / size.width, size.presentationHeight / size.height );
+
+			// Respect max/min scale settings
+			scale = Math.max( scale, config.minScale );
+			scale = Math.min( scale, config.maxScale );
+
+			// Don't apply any scaling styles if scale is 1
+			if( scale === 1 ) {
+				dom.slides.style.zoom = '';
+				dom.slides.style.left = '';
+				dom.slides.style.top = '';
+				dom.slides.style.bottom = '';
+				dom.slides.style.right = '';
+				transformSlides( { layout: '' } );
+			}
+			else {
+				// Use zoom to scale up in desktop Chrome so that content
+				// remains crisp. We don't use zoom to scale down since that
+				// can lead to shifts in text layout/line breaks.
+				if( scale > 1 && !isMobileDevice && /chrome/i.test( navigator.userAgent ) && typeof dom.slides.style.zoom !== 'undefined' ) {
+					dom.slides.style.zoom = scale;
+					dom.slides.style.left = '';
+					dom.slides.style.top = '';
+					dom.slides.style.bottom = '';
+					dom.slides.style.right = '';
+					transformSlides( { layout: '' } );
+				}
+				// Apply scale transform as a fallback
+				else {
+					dom.slides.style.zoom = '';
+					dom.slides.style.left = '50%';
+					dom.slides.style.top = '50%';
+					dom.slides.style.bottom = 'auto';
+					dom.slides.style.right = 'auto';
+					transformSlides( { layout: 'translate(-50%, -50%) scale('+ scale +')' } );
+				}
+			}
+
+			// Select all slides, vertical and horizontal
+			var slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) );
+
+			for( var i = 0, len = slides.length; i < len; i++ ) {
+				var slide = slides[ i ];
+
+				// Don't bother updating invisible slides
+				if( slide.style.display === 'none' ) {
+					continue;
+				}
+
+				if( config.center || slide.classList.contains( 'center' ) ) {
+					// Vertical stacks are not centred since their section
+					// children will be
+					if( slide.classList.contains( 'stack' ) ) {
+						slide.style.top = 0;
+					}
+					else {
+						slide.style.top = Math.max( ( ( size.height - getAbsoluteHeight( slide ) ) / 2 ) - slidePadding, 0 ) + 'px';
+					}
+				}
+				else {
+					slide.style.top = '';
+				}
+
+			}
+
+			updateProgress();
+			updateParallax();
+
+		}
+
+	}
+
+	/**
+	 * Applies layout logic to the contents of all slides in
+	 * the presentation.
+	 */
+	function layoutSlideContents( width, height, padding ) {
+
+		// Handle sizing of elements with the 'stretch' class
+		toArray( dom.slides.querySelectorAll( 'section > .stretch' ) ).forEach( function( element ) {
+
+			// Determine how much vertical space we can use
+			var remainingHeight = getRemainingHeight( element, height );
+
+			// Consider the aspect ratio of media elements
+			if( /(img|video)/gi.test( element.nodeName ) ) {
+				var nw = element.naturalWidth || element.videoWidth,
+					nh = element.naturalHeight || element.videoHeight;
+
+				var es = Math.min( width / nw, remainingHeight / nh );
+
+				element.style.width = ( nw * es ) + 'px';
+				element.style.height = ( nh * es ) + 'px';
+
+			}
+			else {
+				element.style.width = width + 'px';
+				element.style.height = remainingHeight + 'px';
+			}
+
+		} );
+
+	}
+
+	/**
+	 * Calculates the computed pixel size of our slides. These
+	 * values are based on the width and height configuration
+	 * options.
+	 */
+	function getComputedSlideSize( presentationWidth, presentationHeight ) {
+
+		var size = {
+			// Slide size
+			width: config.width,
+			height: config.height,
+
+			// Presentation size
+			presentationWidth: presentationWidth || dom.wrapper.offsetWidth,
+			presentationHeight: presentationHeight || dom.wrapper.offsetHeight
+		};
+
+		// Reduce available space by margin
+		size.presentationWidth -= ( size.presentationWidth * config.margin );
+		size.presentationHeight -= ( size.presentationHeight * config.margin );
+
+		// Slide width may be a percentage of available width
+		if( typeof size.width === 'string' && /%$/.test( size.width ) ) {
+			size.width = parseInt( size.width, 10 ) / 100 * size.presentationWidth;
+		}
+
+		// Slide height may be a percentage of available height
+		if( typeof size.height === 'string' && /%$/.test( size.height ) ) {
+			size.height = parseInt( size.height, 10 ) / 100 * size.presentationHeight;
+		}
+
+		return size;
+
+	}
+
+	/**
+	 * Stores the vertical index of a stack so that the same
+	 * vertical slide can be selected when navigating to and
+	 * from the stack.
+	 *
+	 * @param {HTMLElement} stack The vertical stack element
+	 * @param {int} v Index to memorize
+	 */
+	function setPreviousVerticalIndex( stack, v ) {
+
+		if( typeof stack === 'object' && typeof stack.setAttribute === 'function' ) {
+			stack.setAttribute( 'data-previous-indexv', v || 0 );
+		}
+
+	}
+
+	/**
+	 * Retrieves the vertical index which was stored using
+	 * #setPreviousVerticalIndex() or 0 if no previous index
+	 * exists.
+	 *
+	 * @param {HTMLElement} stack The vertical stack element
+	 */
+	function getPreviousVerticalIndex( stack ) {
+
+		if( typeof stack === 'object' && typeof stack.setAttribute === 'function' && stack.classList.contains( 'stack' ) ) {
+			// Prefer manually defined start-indexv
+			var attributeName = stack.hasAttribute( 'data-start-indexv' ) ? 'data-start-indexv' : 'data-previous-indexv';
+
+			return parseInt( stack.getAttribute( attributeName ) || 0, 10 );
+		}
+
+		return 0;
+
+	}
+
+	/**
+	 * Displays the overview of slides (quick nav) by scaling
+	 * down and arranging all slide elements.
+	 */
+	function activateOverview() {
+
+		// Only proceed if enabled in config
+		if( config.overview && !isOverview() ) {
+
+			overview = true;
+
+			dom.wrapper.classList.add( 'overview' );
+			dom.wrapper.classList.remove( 'overview-deactivating' );
+
+			if( features.overviewTransitions ) {
+				setTimeout( function() {
+					dom.wrapper.classList.add( 'overview-animated' );
+				}, 1 );
+			}
+
+			// Don't auto-slide while in overview mode
+			cancelAutoSlide();
+
+			// Move the backgrounds element into the slide container to
+			// that the same scaling is applied
+			dom.slides.appendChild( dom.background );
+
+			// Clicking on an overview slide navigates to it
+			toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
+				if( !slide.classList.contains( 'stack' ) ) {
+					slide.addEventListener( 'click', onOverviewSlideClicked, true );
+				}
+			} );
+
+			updateSlidesVisibility();
+			layoutOverview();
+			updateOverview();
+
+			layout();
+
+			// Notify observers of the overview showing
+			dispatchEvent( 'overviewshown', {
+				'indexh': indexh,
+				'indexv': indexv,
+				'currentSlide': currentSlide
+			} );
+
+		}
+
+	}
+
+	/**
+	 * Uses CSS transforms to position all slides in a grid for
+	 * display inside of the overview mode.
+	 */
+	function layoutOverview() {
+
+		var margin = 70;
+		var slideWidth = config.width + margin,
+			slideHeight = config.height + margin;
+
+		// Reverse in RTL mode
+		if( config.rtl ) {
+			slideWidth = -slideWidth;
+		}
+
+		// Layout slides
+		toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( hslide, h ) {
+			hslide.setAttribute( 'data-index-h', h );
+			transformElement( hslide, 'translate3d(' + ( h * slideWidth ) + 'px, 0, 0)' );
+
+			if( hslide.classList.contains( 'stack' ) ) {
+
+				toArray( hslide.querySelectorAll( 'section' ) ).forEach( function( vslide, v ) {
+					vslide.setAttribute( 'data-index-h', h );
+					vslide.setAttribute( 'data-index-v', v );
+
+					transformElement( vslide, 'translate3d(0, ' + ( v * slideHeight ) + 'px, 0)' );
+				} );
+
+			}
+		} );
+
+		// Layout slide backgrounds
+		toArray( dom.background.childNodes ).forEach( function( hbackground, h ) {
+			transformElement( hbackground, 'translate3d(' + ( h * slideWidth ) + 'px, 0, 0)' );
+
+			toArray( hbackground.querySelectorAll( '.slide-background' ) ).forEach( function( vbackground, v ) {
+				transformElement( vbackground, 'translate3d(0, ' + ( v * slideHeight ) + 'px, 0)' );
+			} );
+		} );
+
+	}
+
+	/**
+	 * Moves the overview viewport to the current slides.
+	 * Called each time the current slide changes.
+	 */
+	function updateOverview() {
+
+		var margin = 70;
+		var slideWidth = config.width + margin,
+			slideHeight = config.height + margin;
+
+		// Reverse in RTL mode
+		if( config.rtl ) {
+			slideWidth = -slideWidth;
+		}
+
+		transformSlides( {
+			overview: [
+				'translateX('+ ( -indexh * slideWidth ) +'px)',
+				'translateY('+ ( -indexv * slideHeight ) +'px)',
+				'translateZ('+ ( window.innerWidth < 400 ? -1000 : -2500 ) +'px)'
+			].join( ' ' )
+		} );
+
+	}
+
+	/**
+	 * Exits the slide overview and enters the currently
+	 * active slide.
+	 */
+	function deactivateOverview() {
+
+		// Only proceed if enabled in config
+		if( config.overview ) {
+
+			overview = false;
+
+			dom.wrapper.classList.remove( 'overview' );
+			dom.wrapper.classList.remove( 'overview-animated' );
+
+			// Temporarily add a class so that transitions can do different things
+			// depending on whether they are exiting/entering overview, or just
+			// moving from slide to slide
+			dom.wrapper.classList.add( 'overview-deactivating' );
+
+			setTimeout( function () {
+				dom.wrapper.classList.remove( 'overview-deactivating' );
+			}, 1 );
+
+			// Move the background element back out
+			dom.wrapper.appendChild( dom.background );
+
+			// Clean up changes made to slides
+			toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
+				transformElement( slide, '' );
+
+				slide.removeEventListener( 'click', onOverviewSlideClicked, true );
+			} );
+
+			// Clean up changes made to backgrounds
+			toArray( dom.background.querySelectorAll( '.slide-background' ) ).forEach( function( background ) {
+				transformElement( background, '' );
+			} );
+
+			transformSlides( { overview: '' } );
+
+			slide( indexh, indexv );
+
+			layout();
+
+			cueAutoSlide();
+
+			// Notify observers of the overview hiding
+			dispatchEvent( 'overviewhidden', {
+				'indexh': indexh,
+				'indexv': indexv,
+				'currentSlide': currentSlide
+			} );
+
+		}
+	}
+
+	/**
+	 * Toggles the slide overview mode on and off.
+	 *
+	 * @param {Boolean} override Optional flag which overrides the
+	 * toggle logic and forcibly sets the desired state. True means
+	 * overview is open, false means it's closed.
+	 */
+	function toggleOverview( override ) {
+
+		if( typeof override === 'boolean' ) {
+			override ? activateOverview() : deactivateOverview();
+		}
+		else {
+			isOverview() ? deactivateOverview() : activateOverview();
+		}
+
+	}
+
+	/**
+	 * Checks if the overview is currently active.
+	 *
+	 * @return {Boolean} true if the overview is active,
+	 * false otherwise
+	 */
+	function isOverview() {
+
+		return overview;
+
+	}
+
+	/**
+	 * Checks if the current or specified slide is vertical
+	 * (nested within another slide).
+	 *
+	 * @param {HTMLElement} slide [optional] The slide to check
+	 * orientation of
+	 */
+	function isVerticalSlide( slide ) {
+
+		// Prefer slide argument, otherwise use current slide
+		slide = slide ? slide : currentSlide;
+
+		return slide && slide.parentNode && !!slide.parentNode.nodeName.match( /section/i );
+
+	}
+
+	/**
+	 * Handling the fullscreen functionality via the fullscreen API
+	 *
+	 * @see http://fullscreen.spec.whatwg.org/
+	 * @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode
+	 */
+	function enterFullscreen() {
+
+		var element = document.body;
+
+		// Check which implementation is available
+		var requestMethod = element.requestFullScreen ||
+							element.webkitRequestFullscreen ||
+							element.webkitRequestFullScreen ||
+							element.mozRequestFullScreen ||
+							element.msRequestFullscreen;
+
+		if( requestMethod ) {
+			requestMethod.apply( element );
+		}
+
+	}
+
+	/**
+	 * Enters the paused mode which fades everything on screen to
+	 * black.
+	 */
+	function pause() {
+
+		if( config.pause ) {
+			var wasPaused = dom.wrapper.classList.contains( 'paused' );
+
+			cancelAutoSlide();
+			dom.wrapper.classList.add( 'paused' );
+
+			if( wasPaused === false ) {
+				dispatchEvent( 'paused' );
+			}
+		}
+
+	}
+
+	/**
+	 * Exits from the paused mode.
+	 */
+	function resume() {
+
+		var wasPaused = dom.wrapper.classList.contains( 'paused' );
+		dom.wrapper.classList.remove( 'paused' );
+
+		cueAutoSlide();
+
+		if( wasPaused ) {
+			dispatchEvent( 'resumed' );
+		}
+
+	}
+
+	/**
+	 * Toggles the paused mode on and off.
+	 */
+	function togglePause( override ) {
+
+		if( typeof override === 'boolean' ) {
+			override ? pause() : resume();
+		}
+		else {
+			isPaused() ? resume() : pause();
+		}
+
+	}
+
+	/**
+	 * Checks if we are currently in the paused mode.
+	 */
+	function isPaused() {
+
+		return dom.wrapper.classList.contains( 'paused' );
+
+	}
+
+	/**
+	 * Toggles the auto slide mode on and off.
+	 *
+	 * @param {Boolean} override Optional flag which sets the desired state.
+	 * True means autoplay starts, false means it stops.
+	 */
+
+	function toggleAutoSlide( override ) {
+
+		if( typeof override === 'boolean' ) {
+			override ? resumeAutoSlide() : pauseAutoSlide();
+		}
+
+		else {
+			autoSlidePaused ? resumeAutoSlide() : pauseAutoSlide();
+		}
+
+	}
+
+	/**
+	 * Checks if the auto slide mode is currently on.
+	 */
+	function isAutoSliding() {
+
+		return !!( autoSlide && !autoSlidePaused );
+
+	}
+
+	/**
+	 * Steps from the current point in the presentation to the
+	 * slide which matches the specified horizontal and vertical
+	 * indices.
+	 *
+	 * @param {int} h Horizontal index of the target slide
+	 * @param {int} v Vertical index of the target slide
+	 * @param {int} f Optional index of a fragment within the
+	 * target slide to activate
+	 * @param {int} o Optional origin for use in multimaster environments
+	 */
+	function slide( h, v, f, o ) {
+
+		// Remember where we were at before
+		previousSlide = currentSlide;
+
+		// Query all horizontal slides in the deck
+		var horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
+
+		// If no vertical index is specified and the upcoming slide is a
+		// stack, resume at its previous vertical index
+		if( v === undefined && !isOverview() ) {
+			v = getPreviousVerticalIndex( horizontalSlides[ h ] );
+		}
+
+		// If we were on a vertical stack, remember what vertical index
+		// it was on so we can resume at the same position when returning
+		if( previousSlide && previousSlide.parentNode && previousSlide.parentNode.classList.contains( 'stack' ) ) {
+			setPreviousVerticalIndex( previousSlide.parentNode, indexv );
+		}
+
+		// Remember the state before this slide
+		var stateBefore = state.concat();
+
+		// Reset the state array
+		state.length = 0;
+
+		var indexhBefore = indexh || 0,
+			indexvBefore = indexv || 0;
+
+		// Activate and transition to the new slide
+		indexh = updateSlides( HORIZONTAL_SLIDES_SELECTOR, h === undefined ? indexh : h );
+		indexv = updateSlides( VERTICAL_SLIDES_SELECTOR, v === undefined ? indexv : v );
+
+		// Update the visibility of slides now that the indices have changed
+		updateSlidesVisibility();
+
+		layout();
+
+		// Apply the new state
+		stateLoop: for( var i = 0, len = state.length; i < len; i++ ) {
+			// Check if this state existed on the previous slide. If it
+			// did, we will avoid adding it repeatedly
+			for( var j = 0; j < stateBefore.length; j++ ) {
+				if( stateBefore[j] === state[i] ) {
+					stateBefore.splice( j, 1 );
+					continue stateLoop;
+				}
+			}
+
+			document.documentElement.classList.add( state[i] );
+
+			// Dispatch custom event matching the state's name
+			dispatchEvent( state[i] );
+		}
+
+		// Clean up the remains of the previous state
+		while( stateBefore.length ) {
+			document.documentElement.classList.remove( stateBefore.pop() );
+		}
+
+		// Update the overview if it's currently active
+		if( isOverview() ) {
+			updateOverview();
+		}
+
+		// Find the current horizontal slide and any possible vertical slides
+		// within it
+		var currentHorizontalSlide = horizontalSlides[ indexh ],
+			currentVerticalSlides = currentHorizontalSlide.querySelectorAll( 'section' );
+
+		// Store references to the previous and current slides
+		currentSlide = currentVerticalSlides[ indexv ] || currentHorizontalSlide;
+
+		// Show fragment, if specified
+		if( typeof f !== 'undefined' ) {
+			navigateFragment( f );
+		}
+
+		// Dispatch an event if the slide changed
+		var slideChanged = ( indexh !== indexhBefore || indexv !== indexvBefore );
+		if( slideChanged ) {
+			dispatchEvent( 'slidechanged', {
+				'indexh': indexh,
+				'indexv': indexv,
+				'previousSlide': previousSlide,
+				'currentSlide': currentSlide,
+				'origin': o
+			} );
+		}
+		else {
+			// Ensure that the previous slide is never the same as the current
+			previousSlide = null;
+		}
+
+		// Solves an edge case where the previous slide maintains the
+		// 'present' class when navigating between adjacent vertical
+		// stacks
+		if( previousSlide ) {
+			previousSlide.classList.remove( 'present' );
+			previousSlide.setAttribute( 'aria-hidden', 'true' );
+
+			// Reset all slides upon navigate to home
+			// Issue: #285
+			if ( dom.wrapper.querySelector( HOME_SLIDE_SELECTOR ).classList.contains( 'present' ) ) {
+				// Launch async task
+				setTimeout( function () {
+					var slides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.stack') ), i;
+					for( i in slides ) {
+						if( slides[i] ) {
+							// Reset stack
+							setPreviousVerticalIndex( slides[i], 0 );
+						}
+					}
+				}, 0 );
+			}
+		}
+
+		// Handle embedded content
+		if( slideChanged || !previousSlide ) {
+			stopEmbeddedContent( previousSlide );
+			startEmbeddedContent( currentSlide );
+		}
+
+		// Announce the current slide contents, for screen readers
+		dom.statusDiv.textContent = currentSlide.textContent;
+
+		updateControls();
+		updateProgress();
+		updateBackground();
+		updateParallax();
+		updateSlideNumber();
+		updateNotes();
+
+		// Update the URL hash
+		writeURL();
+
+		cueAutoSlide();
+
+	}
+
+	/**
+	 * Syncs the presentation with the current DOM. Useful
+	 * when new slides or control elements are added or when
+	 * the configuration has changed.
+	 */
+	function sync() {
+
+		// Subscribe to input
+		removeEventListeners();
+		addEventListeners();
+
+		// Force a layout to make sure the current config is accounted for
+		layout();
+
+		// Reflect the current autoSlide value
+		autoSlide = config.autoSlide;
+
+		// Start auto-sliding if it's enabled
+		cueAutoSlide();
+
+		// Re-create the slide backgrounds
+		createBackgrounds();
+
+		// Write the current hash to the URL
+		writeURL();
+
+		sortAllFragments();
+
+		updateControls();
+		updateProgress();
+		updateBackground( true );
+		updateSlideNumber();
+		updateSlidesVisibility();
+		updateNotes();
+
+		formatEmbeddedContent();
+		startEmbeddedContent( currentSlide );
+
+		if( isOverview() ) {
+			layoutOverview();
+		}
+
+	}
+
+	/**
+	 * Resets all vertical slides so that only the first
+	 * is visible.
+	 */
+	function resetVerticalSlides() {
+
+		var horizontalSlides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) );
+		horizontalSlides.forEach( function( horizontalSlide ) {
+
+			var verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) );
+			verticalSlides.forEach( function( verticalSlide, y ) {
+
+				if( y > 0 ) {
+					verticalSlide.classList.remove( 'present' );
+					verticalSlide.classList.remove( 'past' );
+					verticalSlide.classList.add( 'future' );
+					verticalSlide.setAttribute( 'aria-hidden', 'true' );
+				}
+
+			} );
+
+		} );
+
+	}
+
+	/**
+	 * Sorts and formats all of fragments in the
+	 * presentation.
+	 */
+	function sortAllFragments() {
+
+		var horizontalSlides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) );
+		horizontalSlides.forEach( function( horizontalSlide ) {
+
+			var verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) );
+			verticalSlides.forEach( function( verticalSlide, y ) {
+
+				sortFragments( verticalSlide.querySelectorAll( '.fragment' ) );
+
+			} );
+
+			if( verticalSlides.length === 0 ) sortFragments( horizontalSlide.querySelectorAll( '.fragment' ) );
+
+		} );
+
+	}
+
+	/**
+	 * Updates one dimension of slides by showing the slide
+	 * with the specified index.
+	 *
+	 * @param {String} selector A CSS selector that will fetch
+	 * the group of slides we are working with
+	 * @param {Number} index The index of the slide that should be
+	 * shown
+	 *
+	 * @return {Number} The index of the slide that is now shown,
+	 * might differ from the passed in index if it was out of
+	 * bounds.
+	 */
+	function updateSlides( selector, index ) {
+
+		// Select all slides and convert the NodeList result to
+		// an array
+		var slides = toArray( dom.wrapper.querySelectorAll( selector ) ),
+			slidesLength = slides.length;
+
+		var printMode = isPrintingPDF();
+
+		if( slidesLength ) {
+
+			// Should the index loop?
+			if( config.loop ) {
+				index %= slidesLength;
+
+				if( index < 0 ) {
+					index = slidesLength + index;
+				}
+			}
+
+			// Enforce max and minimum index bounds
+			index = Math.max( Math.min( index, slidesLength - 1 ), 0 );
+
+			for( var i = 0; i < slidesLength; i++ ) {
+				var element = slides[i];
+
+				var reverse = config.rtl && !isVerticalSlide( element );
+
+				element.classList.remove( 'past' );
+				element.classList.remove( 'present' );
+				element.classList.remove( 'future' );
+
+				// http://www.w3.org/html/wg/drafts/html/master/editing.html#the-hidden-attribute
+				element.setAttribute( 'hidden', '' );
+				element.setAttribute( 'aria-hidden', 'true' );
+
+				// If this element contains vertical slides
+				if( element.querySelector( 'section' ) ) {
+					element.classList.add( 'stack' );
+				}
+
+				// If we're printing static slides, all slides are "present"
+				if( printMode ) {
+					element.classList.add( 'present' );
+					continue;
+				}
+
+				if( i < index ) {
+					// Any element previous to index is given the 'past' class
+					element.classList.add( reverse ? 'future' : 'past' );
+
+					if( config.fragments ) {
+						var pastFragments = toArray( element.querySelectorAll( '.fragment' ) );
+
+						// Show all fragments on prior slides
+						while( pastFragments.length ) {
+							var pastFragment = pastFragments.pop();
+							pastFragment.classList.add( 'visible' );
+							pastFragment.classList.remove( 'current-fragment' );
+						}
+					}
+				}
+				else if( i > index ) {
+					// Any element subsequent to index is given the 'future' class
+					element.classList.add( reverse ? 'past' : 'future' );
+
+					if( config.fragments ) {
+						var futureFragments = toArray( element.querySelectorAll( '.fragment.visible' ) );
+
+						// No fragments in future slides should be visible ahead of time
+						while( futureFragments.length ) {
+							var futureFragment = futureFragments.pop();
+							futureFragment.classList.remove( 'visible' );
+							futureFragment.classList.remove( 'current-fragment' );
+						}
+					}
+				}
+			}
+
+			// Mark the current slide as present
+			slides[index].classList.add( 'present' );
+			slides[index].removeAttribute( 'hidden' );
+			slides[index].removeAttribute( 'aria-hidden' );
+
+			// If this slide has a state associated with it, add it
+			// onto the current state of the deck
+			var slideState = slides[index].getAttribute( 'data-state' );
+			if( slideState ) {
+				state = state.concat( slideState.split( ' ' ) );
+			}
+
+		}
+		else {
+			// Since there are no slides we can't be anywhere beyond the
+			// zeroth index
+			index = 0;
+		}
+
+		return index;
+
+	}
+
+	/**
+	 * Optimization method; hide all slides that are far away
+	 * from the present slide.
+	 */
+	function updateSlidesVisibility() {
+
+		// Select all slides and convert the NodeList result to
+		// an array
+		var horizontalSlides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ),
+			horizontalSlidesLength = horizontalSlides.length,
+			distanceX,
+			distanceY;
+
+		if( horizontalSlidesLength && typeof indexh !== 'undefined' ) {
+
+			// The number of steps away from the present slide that will
+			// be visible
+			var viewDistance = isOverview() ? 10 : config.viewDistance;
+
+			// Limit view distance on weaker devices
+			if( isMobileDevice ) {
+				viewDistance = isOverview() ? 6 : 2;
+			}
+
+			// All slides need to be visible when exporting to PDF
+			if( isPrintingPDF() ) {
+				viewDistance = Number.MAX_VALUE;
+			}
+
+			for( var x = 0; x < horizontalSlidesLength; x++ ) {
+				var horizontalSlide = horizontalSlides[x];
+
+				var verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) ),
+					verticalSlidesLength = verticalSlides.length;
+
+				// Determine how far away this slide is from the present
+				distanceX = Math.abs( ( indexh || 0 ) - x ) || 0;
+
+				// If the presentation is looped, distance should measure
+				// 1 between the first and last slides
+				if( config.loop ) {
+					distanceX = Math.abs( ( ( indexh || 0 ) - x ) % ( horizontalSlidesLength - viewDistance ) ) || 0;
+				}
+
+				// Show the horizontal slide if it's within the view distance
+				if( distanceX < viewDistance ) {
+					showSlide( horizontalSlide );
+				}
+				else {
+					hideSlide( horizontalSlide );
+				}
+
+				if( verticalSlidesLength ) {
+
+					var oy = getPreviousVerticalIndex( horizontalSlide );
+
+					for( var y = 0; y < verticalSlidesLength; y++ ) {
+						var verticalSlide = verticalSlides[y];
+
+						distanceY = x === ( indexh || 0 ) ? Math.abs( ( indexv || 0 ) - y ) : Math.abs( y - oy );
+
+						if( distanceX + distanceY < viewDistance ) {
+							showSlide( verticalSlide );
+						}
+						else {
+							hideSlide( verticalSlide );
+						}
+					}
+
+				}
+			}
+
+		}
+
+	}
+
+	/**
+	 * Pick up notes from the current slide and display tham
+	 * to the viewer.
+	 *
+	 * @see `showNotes` config value
+	 */
+	function updateNotes() {
+
+		if( config.showNotes && dom.speakerNotes && currentSlide && !isPrintingPDF() ) {
+
+			dom.speakerNotes.innerHTML = getSlideNotes() || '';
+
+		}
+
+	}
+
+	/**
+	 * Updates the progress bar to reflect the current slide.
+	 */
+	function updateProgress() {
+
+		// Update progress if enabled
+		if( config.progress && dom.progressbar ) {
+
+			dom.progressbar.style.width = getProgress() * dom.wrapper.offsetWidth + 'px';
+
+		}
+
+	}
+
+	/**
+	 * Updates the slide number div to reflect the current slide.
+	 *
+	 * The following slide number formats are available:
+	 *  "h.v": 	horizontal . vertical slide number (default)
+	 *  "h/v": 	horizontal / vertical slide number
+	 *    "c": 	flattened slide number
+	 *  "c/t": 	flattened slide number / total slides
+	 */
+	function updateSlideNumber() {
+
+		// Update slide number if enabled
+		if( config.slideNumber && dom.slideNumber ) {
+
+			var value = [];
+			var format = 'h.v';
+
+			// Check if a custom number format is available
+			if( typeof config.slideNumber === 'string' ) {
+				format = config.slideNumber;
+			}
+
+			switch( format ) {
+				case 'c':
+					value.push( getSlidePastCount() + 1 );
+					break;
+				case 'c/t':
+					value.push( getSlidePastCount() + 1, '/', getTotalSlides() );
+					break;
+				case 'h/v':
+					value.push( indexh + 1 );
+					if( isVerticalSlide() ) value.push( '/', indexv + 1 );
+					break;
+				default:
+					value.push( indexh + 1 );
+					if( isVerticalSlide() ) value.push( '.', indexv + 1 );
+			}
+
+			dom.slideNumber.innerHTML = formatSlideNumber( value[0], value[1], value[2] );
+		}
+
+	}
+
+	/**
+	 * Applies HTML formatting to a slide number before it's
+	 * written to the DOM.
+	 */
+	function formatSlideNumber( a, delimiter, b ) {
+
+		if( typeof b === 'number' && !isNaN( b ) ) {
+			return  '<span class="slide-number-a">'+ a +'</span>' +
+					'<span class="slide-number-delimiter">'+ delimiter +'</span>' +
+					'<span class="slide-number-b">'+ b +'</span>';
+		}
+		else {
+			return '<span class="slide-number-a">'+ a +'</span>';
+		}
+
+	}
+
+	/**
+	 * Updates the state of all control/navigation arrows.
+	 */
+	function updateControls() {
+
+		var routes = availableRoutes();
+		var fragments = availableFragments();
+
+		// Remove the 'enabled' class from all directions
+		dom.controlsLeft.concat( dom.controlsRight )
+						.concat( dom.controlsUp )
+						.concat( dom.controlsDown )
+						.concat( dom.controlsPrev )
+						.concat( dom.controlsNext ).forEach( function( node ) {
+			node.classList.remove( 'enabled' );
+			node.classList.remove( 'fragmented' );
+		} );
+
+		// Add the 'enabled' class to the available routes
+		if( routes.left ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'enabled' );	} );
+		if( routes.right ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+		if( routes.up ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'enabled' );	} );
+		if( routes.down ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+
+		// Prev/next buttons
+		if( routes.left || routes.up ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+		if( routes.right || routes.down ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+
+		// Highlight fragment directions
+		if( currentSlide ) {
+
+			// Always apply fragment decorator to prev/next buttons
+			if( fragments.prev ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+			if( fragments.next ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+
+			// Apply fragment decorators to directional buttons based on
+			// what slide axis they are in
+			if( isVerticalSlide( currentSlide ) ) {
+				if( fragments.prev ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+				if( fragments.next ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+			}
+			else {
+				if( fragments.prev ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+				if( fragments.next ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+			}
+
+		}
+
+	}
+
+	/**
+	 * Updates the background elements to reflect the current
+	 * slide.
+	 *
+	 * @param {Boolean} includeAll If true, the backgrounds of
+	 * all vertical slides (not just the present) will be updated.
+	 */
+	function updateBackground( includeAll ) {
+
+		var currentBackground = null;
+
+		// Reverse past/future classes when in RTL mode
+		var horizontalPast = config.rtl ? 'future' : 'past',
+			horizontalFuture = config.rtl ? 'past' : 'future';
+
+		// Update the classes of all backgrounds to match the
+		// states of their slides (past/present/future)
+		toArray( dom.background.childNodes ).forEach( function( backgroundh, h ) {
+
+			backgroundh.classList.remove( 'past' );
+			backgroundh.classList.remove( 'present' );
+			backgroundh.classList.remove( 'future' );
+
+			if( h < indexh ) {
+				backgroundh.classList.add( horizontalPast );
+			}
+			else if ( h > indexh ) {
+				backgroundh.classList.add( horizontalFuture );
+			}
+			else {
+				backgroundh.classList.add( 'present' );
+
+				// Store a reference to the current background element
+				currentBackground = backgroundh;
+			}
+
+			if( includeAll || h === indexh ) {
+				toArray( backgroundh.querySelectorAll( '.slide-background' ) ).forEach( function( backgroundv, v ) {
+
+					backgroundv.classList.remove( 'past' );
+					backgroundv.classList.remove( 'present' );
+					backgroundv.classList.remove( 'future' );
+
+					if( v < indexv ) {
+						backgroundv.classList.add( 'past' );
+					}
+					else if ( v > indexv ) {
+						backgroundv.classList.add( 'future' );
+					}
+					else {
+						backgroundv.classList.add( 'present' );
+
+						// Only if this is the present horizontal and vertical slide
+						if( h === indexh ) currentBackground = backgroundv;
+					}
+
+				} );
+			}
+
+		} );
+
+		// Stop any currently playing video background
+		if( previousBackground ) {
+
+			var previousVideo = previousBackground.querySelector( 'video' );
+			if( previousVideo ) previousVideo.pause();
+
+		}
+
+		if( currentBackground ) {
+
+			// Start video playback
+			var currentVideo = currentBackground.querySelector( 'video' );
+			if( currentVideo ) {
+				if( currentVideo.currentTime > 0 ) currentVideo.currentTime = 0;
+				currentVideo.play();
+			}
+
+			var backgroundImageURL = currentBackground.style.backgroundImage || '';
+
+			// Restart GIFs (doesn't work in Firefox)
+			if( /\.gif/i.test( backgroundImageURL ) ) {
+				currentBackground.style.backgroundImage = '';
+				window.getComputedStyle( currentBackground ).opacity;
+				currentBackground.style.backgroundImage = backgroundImageURL;
+			}
+
+			// Don't transition between identical backgrounds. This
+			// prevents unwanted flicker.
+			var previousBackgroundHash = previousBackground ? previousBackground.getAttribute( 'data-background-hash' ) : null;
+			var currentBackgroundHash = currentBackground.getAttribute( 'data-background-hash' );
+			if( currentBackgroundHash && currentBackgroundHash === previousBackgroundHash && currentBackground !== previousBackground ) {
+				dom.background.classList.add( 'no-transition' );
+			}
+
+			previousBackground = currentBackground;
+
+		}
+
+		// If there's a background brightness flag for this slide,
+		// bubble it to the .reveal container
+		if( currentSlide ) {
+			[ 'has-light-background', 'has-dark-background' ].forEach( function( classToBubble ) {
+				if( currentSlide.classList.contains( classToBubble ) ) {
+					dom.wrapper.classList.add( classToBubble );
+				}
+				else {
+					dom.wrapper.classList.remove( classToBubble );
+				}
+			} );
+		}
+
+		// Allow the first background to apply without transition
+		setTimeout( function() {
+			dom.background.classList.remove( 'no-transition' );
+		}, 1 );
+
+	}
+
+	/**
+	 * Updates the position of the parallax background based
+	 * on the current slide index.
+	 */
+	function updateParallax() {
+
+		if( config.parallaxBackgroundImage ) {
+
+			var horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ),
+				verticalSlides = dom.wrapper.querySelectorAll( VERTICAL_SLIDES_SELECTOR );
+
+			var backgroundSize = dom.background.style.backgroundSize.split( ' ' ),
+				backgroundWidth, backgroundHeight;
+
+			if( backgroundSize.length === 1 ) {
+				backgroundWidth = backgroundHeight = parseInt( backgroundSize[0], 10 );
+			}
+			else {
+				backgroundWidth = parseInt( backgroundSize[0], 10 );
+				backgroundHeight = parseInt( backgroundSize[1], 10 );
+			}
+
+			var slideWidth = dom.background.offsetWidth,
+				horizontalSlideCount = horizontalSlides.length,
+				horizontalOffsetMultiplier,
+				horizontalOffset;
+
+			if( typeof config.parallaxBackgroundHorizontal === 'number' ) {
+				horizontalOffsetMultiplier = config.parallaxBackgroundHorizontal;
+			}
+			else {
+				horizontalOffsetMultiplier = horizontalSlideCount > 1 ? ( backgroundWidth - slideWidth ) / ( horizontalSlideCount-1 ) : 0;
+			}
+
+			horizontalOffset = horizontalOffsetMultiplier * indexh * -1;
+
+			var slideHeight = dom.background.offsetHeight,
+				verticalSlideCount = verticalSlides.length,
+				verticalOffsetMultiplier,
+				verticalOffset;
+
+			if( typeof config.parallaxBackgroundVertical === 'number' ) {
+				verticalOffsetMultiplier = config.parallaxBackgroundVertical;
+			}
+			else {
+				verticalOffsetMultiplier = ( backgroundHeight - slideHeight ) / ( verticalSlideCount-1 );
+			}
+
+			verticalOffset = verticalSlideCount > 0 ?  verticalOffsetMultiplier * indexv * 1 : 0;
+
+			dom.background.style.backgroundPosition = horizontalOffset + 'px ' + -verticalOffset + 'px';
+
+		}
+
+	}
+
+	/**
+	 * Called when the given slide is within the configured view
+	 * distance. Shows the slide element and loads any content
+	 * that is set to load lazily (data-src).
+	 */
+	function showSlide( slide ) {
+
+		// Show the slide element
+		slide.style.display = 'block';
+
+		// Media elements with data-src attributes
+		toArray( slide.querySelectorAll( 'img[data-src], video[data-src], audio[data-src]' ) ).forEach( function( element ) {
+			element.setAttribute( 'src', element.getAttribute( 'data-src' ) );
+			element.removeAttribute( 'data-src' );
+		} );
+
+		// Media elements with <source> children
+		toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( function( media ) {
+			var sources = 0;
+
+			toArray( media.querySelectorAll( 'source[data-src]' ) ).forEach( function( source ) {
+				source.setAttribute( 'src', source.getAttribute( 'data-src' ) );
+				source.removeAttribute( 'data-src' );
+				sources += 1;
+			} );
+
+			// If we rewrote sources for this video/audio element, we need
+			// to manually tell it to load from its new origin
+			if( sources > 0 ) {
+				media.load();
+			}
+		} );
+
+
+		// Show the corresponding background element
+		var indices = getIndices( slide );
+		var background = getSlideBackground( indices.h, indices.v );
+		if( background ) {
+			background.style.display = 'block';
+
+			// If the background contains media, load it
+			if( background.hasAttribute( 'data-loaded' ) === false ) {
+				background.setAttribute( 'data-loaded', 'true' );
+
+				var backgroundImage = slide.getAttribute( 'data-background-image' ),
+					backgroundVideo = slide.getAttribute( 'data-background-video' ),
+					backgroundVideoLoop = slide.hasAttribute( 'data-background-video-loop' ),
+					backgroundIframe = slide.getAttribute( 'data-background-iframe' );
+
+				// Images
+				if( backgroundImage ) {
+					background.style.backgroundImage = 'url('+ backgroundImage +')';
+				}
+				// Videos
+				else if ( backgroundVideo && !isSpeakerNotes() ) {
+					var video = document.createElement( 'video' );
+
+					if( backgroundVideoLoop ) {
+						video.setAttribute( 'loop', '' );
+					}
+
+					// Support comma separated lists of video sources
+					backgroundVideo.split( ',' ).forEach( function( source ) {
+						video.innerHTML += '<source src="'+ source +'">';
+					} );
+
+					background.appendChild( video );
+				}
+				// Iframes
+				else if( backgroundIframe ) {
+					var iframe = document.createElement( 'iframe' );
+						iframe.setAttribute( 'src', backgroundIframe );
+						iframe.style.width  = '100%';
+						iframe.style.height = '100%';
+						iframe.style.maxHeight = '100%';
+						iframe.style.maxWidth = '100%';
+
+					background.appendChild( iframe );
+				}
+			}
+		}
+
+	}
+
+	/**
+	 * Called when the given slide is moved outside of the
+	 * configured view distance.
+	 */
+	function hideSlide( slide ) {
+
+		// Hide the slide element
+		slide.style.display = 'none';
+
+		// Hide the corresponding background element
+		var indices = getIndices( slide );
+		var background = getSlideBackground( indices.h, indices.v );
+		if( background ) {
+			background.style.display = 'none';
+		}
+
+	}
+
+	/**
+	 * Determine what available routes there are for navigation.
+	 *
+	 * @return {Object} containing four booleans: left/right/up/down
+	 */
+	function availableRoutes() {
+
+		var horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ),
+			verticalSlides = dom.wrapper.querySelectorAll( VERTICAL_SLIDES_SELECTOR );
+
+		var routes = {
+			left: indexh > 0 || config.loop,
+			right: indexh < horizontalSlides.length - 1 || config.loop,
+			up: indexv > 0,
+			down: indexv < verticalSlides.length - 1
+		};
+
+		// reverse horizontal controls for rtl
+		if( config.rtl ) {
+			var left = routes.left;
+			routes.left = routes.right;
+			routes.right = left;
+		}
+
+		return routes;
+
+	}
+
+	/**
+	 * Returns an object describing the available fragment
+	 * directions.
+	 *
+	 * @return {Object} two boolean properties: prev/next
+	 */
+	function availableFragments() {
+
+		if( currentSlide && config.fragments ) {
+			var fragments = currentSlide.querySelectorAll( '.fragment' );
+			var hiddenFragments = currentSlide.querySelectorAll( '.fragment:not(.visible)' );
+
+			return {
+				prev: fragments.length - hiddenFragments.length > 0,
+				next: !!hiddenFragments.length
+			};
+		}
+		else {
+			return { prev: false, next: false };
+		}
+
+	}
+
+	/**
+	 * Enforces origin-specific format rules for embedded media.
+	 */
+	function formatEmbeddedContent() {
+
+		var _appendParamToIframeSource = function( sourceAttribute, sourceURL, param ) {
+			toArray( dom.slides.querySelectorAll( 'iframe['+ sourceAttribute +'*="'+ sourceURL +'"]' ) ).forEach( function( el ) {
+				var src = el.getAttribute( sourceAttribute );
+				if( src && src.indexOf( param ) === -1 ) {
+					el.setAttribute( sourceAttribute, src + ( !/\?/.test( src ) ? '?' : '&' ) + param );
+				}
+			});
+		};
+
+		// YouTube frames must include "?enablejsapi=1"
+		_appendParamToIframeSource( 'src', 'youtube.com/embed/', 'enablejsapi=1' );
+		_appendParamToIframeSource( 'data-src', 'youtube.com/embed/', 'enablejsapi=1' );
+
+		// Vimeo frames must include "?api=1"
+		_appendParamToIframeSource( 'src', 'player.vimeo.com/', 'api=1' );
+		_appendParamToIframeSource( 'data-src', 'player.vimeo.com/', 'api=1' );
+
+	}
+
+	/**
+	 * Start playback of any embedded content inside of
+	 * the targeted slide.
+	 */
+	function startEmbeddedContent( slide ) {
+
+		if( slide && !isSpeakerNotes() ) {
+			// Restart GIFs
+			toArray( slide.querySelectorAll( 'img[src$=".gif"]' ) ).forEach( function( el ) {
+				// Setting the same unchanged source like this was confirmed
+				// to work in Chrome, FF & Safari
+				el.setAttribute( 'src', el.getAttribute( 'src' ) );
+			} );
+
+			// HTML5 media elements
+			toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( function( el ) {
+				if( el.hasAttribute( 'data-autoplay' ) && typeof el.play === 'function' ) {
+					el.play();
+				}
+			} );
+
+			// Normal iframes
+			toArray( slide.querySelectorAll( 'iframe[src]' ) ).forEach( function( el ) {
+				startEmbeddedIframe( { target: el } );
+			} );
+
+			// Lazy loading iframes
+			toArray( slide.querySelectorAll( 'iframe[data-src]' ) ).forEach( function( el ) {
+				if( el.getAttribute( 'src' ) !== el.getAttribute( 'data-src' ) ) {
+					el.removeEventListener( 'load', startEmbeddedIframe ); // remove first to avoid dupes
+					el.addEventListener( 'load', startEmbeddedIframe );
+					el.setAttribute( 'src', el.getAttribute( 'data-src' ) );
+				}
+			} );
+		}
+
+	}
+
+	/**
+	 * "Starts" the content of an embedded iframe using the
+	 * postmessage API.
+	 */
+	function startEmbeddedIframe( event ) {
+
+		var iframe = event.target;
+
+		// YouTube postMessage API
+		if( /youtube\.com\/embed\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) {
+			iframe.contentWindow.postMessage( '{"event":"command","func":"playVideo","args":""}', '*' );
+		}
+		// Vimeo postMessage API
+		else if( /player\.vimeo\.com\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) {
+			iframe.contentWindow.postMessage( '{"method":"play"}', '*' );
+		}
+		// Generic postMessage API
+		else {
+			iframe.contentWindow.postMessage( 'slide:start', '*' );
+		}
+
+	}
+
+	/**
+	 * Stop playback of any embedded content inside of
+	 * the targeted slide.
+	 */
+	function stopEmbeddedContent( slide ) {
+
+		if( slide && slide.parentNode ) {
+			// HTML5 media elements
+			toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( function( el ) {
+				if( !el.hasAttribute( 'data-ignore' ) && typeof el.pause === 'function' ) {
+					el.pause();
+				}
+			} );
+
+			// Generic postMessage API for non-lazy loaded iframes
+			toArray( slide.querySelectorAll( 'iframe' ) ).forEach( function( el ) {
+				el.contentWindow.postMessage( 'slide:stop', '*' );
+				el.removeEventListener( 'load', startEmbeddedIframe );
+			});
+
+			// YouTube postMessage API
+			toArray( slide.querySelectorAll( 'iframe[src*="youtube.com/embed/"]' ) ).forEach( function( el ) {
+				if( !el.hasAttribute( 'data-ignore' ) && typeof el.contentWindow.postMessage === 'function' ) {
+					el.contentWindow.postMessage( '{"event":"command","func":"pauseVideo","args":""}', '*' );
+				}
+			});
+
+			// Vimeo postMessage API
+			toArray( slide.querySelectorAll( 'iframe[src*="player.vimeo.com/"]' ) ).forEach( function( el ) {
+				if( !el.hasAttribute( 'data-ignore' ) && typeof el.contentWindow.postMessage === 'function' ) {
+					el.contentWindow.postMessage( '{"method":"pause"}', '*' );
+				}
+			});
+
+			// Lazy loading iframes
+			toArray( slide.querySelectorAll( 'iframe[data-src]' ) ).forEach( function( el ) {
+				// Only removing the src doesn't actually unload the frame
+				// in all browsers (Firefox) so we set it to blank first
+				el.setAttribute( 'src', 'about:blank' );
+				el.removeAttribute( 'src' );
+			} );
+		}
+
+	}
+
+	/**
+	 * Returns the number of past slides. This can be used as a global
+	 * flattened index for slides.
+	 */
+	function getSlidePastCount() {
+
+		var horizontalSlides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) );
+
+		// The number of past slides
+		var pastCount = 0;
+
+		// Step through all slides and count the past ones
+		mainLoop: for( var i = 0; i < horizontalSlides.length; i++ ) {
+
+			var horizontalSlide = horizontalSlides[i];
+			var verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) );
+
+			for( var j = 0; j < verticalSlides.length; j++ ) {
+
+				// Stop as soon as we arrive at the present
+				if( verticalSlides[j].classList.contains( 'present' ) ) {
+					break mainLoop;
+				}
+
+				pastCount++;
+
+			}
+
+			// Stop as soon as we arrive at the present
+			if( horizontalSlide.classList.contains( 'present' ) ) {
+				break;
+			}
+
+			// Don't count the wrapping section for vertical slides
+			if( horizontalSlide.classList.contains( 'stack' ) === false ) {
+				pastCount++;
+			}
+
+		}
+
+		return pastCount;
+
+	}
+
+	/**
+	 * Returns a value ranging from 0-1 that represents
+	 * how far into the presentation we have navigated.
+	 */
+	function getProgress() {
+
+		// The number of past and total slides
+		var totalCount = getTotalSlides();
+		var pastCount = getSlidePastCount();
+
+		if( currentSlide ) {
+
+			var allFragments = currentSlide.querySelectorAll( '.fragment' );
+
+			// If there are fragments in the current slide those should be
+			// accounted for in the progress.
+			if( allFragments.length > 0 ) {
+				var visibleFragments = currentSlide.querySelectorAll( '.fragment.visible' );
+
+				// This value represents how big a portion of the slide progress
+				// that is made up by its fragments (0-1)
+				var fragmentWeight = 0.9;
+
+				// Add fragment progress to the past slide count
+				pastCount += ( visibleFragments.length / allFragments.length ) * fragmentWeight;
+			}
+
+		}
+
+		return pastCount / ( totalCount - 1 );
+
+	}
+
+	/**
+	 * Checks if this presentation is running inside of the
+	 * speaker notes window.
+	 */
+	function isSpeakerNotes() {
+
+		return !!window.location.search.match( /receiver/gi );
+
+	}
+
+	/**
+	 * Reads the current URL (hash) and navigates accordingly.
+	 */
+	function readURL() {
+
+		var hash = window.location.hash;
+
+		// Attempt to parse the hash as either an index or name
+		var bits = hash.slice( 2 ).split( '/' ),
+			name = hash.replace( /#|\//gi, '' );
+
+		// If the first bit is invalid and there is a name we can
+		// assume that this is a named link
+		if( isNaN( parseInt( bits[0], 10 ) ) && name.length ) {
+			var element;
+
+			// Ensure the named link is a valid HTML ID attribute
+			if( /^[a-zA-Z][\w:.-]*$/.test( name ) ) {
+				// Find the slide with the specified ID
+				element = document.getElementById( name );
+			}
+
+			if( element ) {
+				// Find the position of the named slide and navigate to it
+				var indices = Reveal.getIndices( element );
+				slide( indices.h, indices.v );
+			}
+			// If the slide doesn't exist, navigate to the current slide
+			else {
+				slide( indexh || 0, indexv || 0 );
+			}
+		}
+		else {
+			// Read the index components of the hash
+			var h = parseInt( bits[0], 10 ) || 0,
+				v = parseInt( bits[1], 10 ) || 0;
+
+			if( h !== indexh || v !== indexv ) {
+				slide( h, v );
+			}
+		}
+
+	}
+
+	/**
+	 * Updates the page URL (hash) to reflect the current
+	 * state.
+	 *
+	 * @param {Number} delay The time in ms to wait before
+	 * writing the hash
+	 */
+	function writeURL( delay ) {
+
+		if( config.history ) {
+
+			// Make sure there's never more than one timeout running
+			clearTimeout( writeURLTimeout );
+
+			// If a delay is specified, timeout this call
+			if( typeof delay === 'number' ) {
+				writeURLTimeout = setTimeout( writeURL, delay );
+			}
+			else if( currentSlide ) {
+				var url = '/';
+
+				// Attempt to create a named link based on the slide's ID
+				var id = currentSlide.getAttribute( 'id' );
+				if( id ) {
+					id = id.replace( /[^a-zA-Z0-9\-\_\:\.]/g, '' );
+				}
+
+				// If the current slide has an ID, use that as a named link
+				if( typeof id === 'string' && id.length ) {
+					url = '/' + id;
+				}
+				// Otherwise use the /h/v index
+				else {
+					if( indexh > 0 || indexv > 0 ) url += indexh;
+					if( indexv > 0 ) url += '/' + indexv;
+				}
+
+				window.location.hash = url;
+			}
+		}
+
+	}
+
+	/**
+	 * Retrieves the h/v location of the current, or specified,
+	 * slide.
+	 *
+	 * @param {HTMLElement} slide If specified, the returned
+	 * index will be for this slide rather than the currently
+	 * active one
+	 *
+	 * @return {Object} { h: <int>, v: <int>, f: <int> }
+	 */
+	function getIndices( slide ) {
+
+		// By default, return the current indices
+		var h = indexh,
+			v = indexv,
+			f;
+
+		// If a slide is specified, return the indices of that slide
+		if( slide ) {
+			var isVertical = isVerticalSlide( slide );
+			var slideh = isVertical ? slide.parentNode : slide;
+
+			// Select all horizontal slides
+			var horizontalSlides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) );
+
+			// Now that we know which the horizontal slide is, get its index
+			h = Math.max( horizontalSlides.indexOf( slideh ), 0 );
+
+			// Assume we're not vertical
+			v = undefined;
+
+			// If this is a vertical slide, grab the vertical index
+			if( isVertical ) {
+				v = Math.max( toArray( slide.parentNode.querySelectorAll( 'section' ) ).indexOf( slide ), 0 );
+			}
+		}
+
+		if( !slide && currentSlide ) {
+			var hasFragments = currentSlide.querySelectorAll( '.fragment' ).length > 0;
+			if( hasFragments ) {
+				var currentFragment = currentSlide.querySelector( '.current-fragment' );
+				if( currentFragment && currentFragment.hasAttribute( 'data-fragment-index' ) ) {
+					f = parseInt( currentFragment.getAttribute( 'data-fragment-index' ), 10 );
+				}
+				else {
+					f = currentSlide.querySelectorAll( '.fragment.visible' ).length - 1;
+				}
+			}
+		}
+
+		return { h: h, v: v, f: f };
+
+	}
+
+	/**
+	 * Retrieves the total number of slides in this presentation.
+	 */
+	function getTotalSlides() {
+
+		return dom.wrapper.querySelectorAll( SLIDES_SELECTOR + ':not(.stack)' ).length;
+
+	}
+
+	/**
+	 * Returns the slide element matching the specified index.
+	 */
+	function getSlide( x, y ) {
+
+		var horizontalSlide = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR )[ x ];
+		var verticalSlides = horizontalSlide && horizontalSlide.querySelectorAll( 'section' );
+
+		if( verticalSlides && verticalSlides.length && typeof y === 'number' ) {
+			return verticalSlides ? verticalSlides[ y ] : undefined;
+		}
+
+		return horizontalSlide;
+
+	}
+
+	/**
+	 * Returns the background element for the given slide.
+	 * All slides, even the ones with no background properties
+	 * defined, have a background element so as long as the
+	 * index is valid an element will be returned.
+	 */
+	function getSlideBackground( x, y ) {
+
+		// When printing to PDF the slide backgrounds are nested
+		// inside of the slides
+		if( isPrintingPDF() ) {
+			var slide = getSlide( x, y );
+			if( slide ) {
+				var background = slide.querySelector( '.slide-background' );
+				if( background && background.parentNode === slide ) {
+					return background;
+				}
+			}
+
+			return undefined;
+		}
+
+		var horizontalBackground = dom.wrapper.querySelectorAll( '.backgrounds>.slide-background' )[ x ];
+		var verticalBackgrounds = horizontalBackground && horizontalBackground.querySelectorAll( '.slide-background' );
+
+		if( verticalBackgrounds && verticalBackgrounds.length && typeof y === 'number' ) {
+			return verticalBackgrounds ? verticalBackgrounds[ y ] : undefined;
+		}
+
+		return horizontalBackground;
+
+	}
+
+	/**
+	 * Retrieves the speaker notes from a slide. Notes can be
+	 * defined in two ways:
+	 * 1. As a data-notes attribute on the slide <section>
+	 * 2. As an <aside class="notes"> inside of the slide
+	 */
+	function getSlideNotes( slide ) {
+
+		// Default to the current slide
+		slide = slide || currentSlide;
+
+		// Notes can be specified via the data-notes attribute...
+		if( slide.hasAttribute( 'data-notes' ) ) {
+			return slide.getAttribute( 'data-notes' );
+		}
+
+		// ... or using an <aside class="notes"> element
+		var notesElement = slide.querySelector( 'aside.notes' );
+		if( notesElement ) {
+			return notesElement.innerHTML;
+		}
+
+		return null;
+
+	}
+
+	/**
+	 * Retrieves the current state of the presentation as
+	 * an object. This state can then be restored at any
+	 * time.
+	 */
+	function getState() {
+
+		var indices = getIndices();
+
+		return {
+			indexh: indices.h,
+			indexv: indices.v,
+			indexf: indices.f,
+			paused: isPaused(),
+			overview: isOverview()
+		};
+
+	}
+
+	/**
+	 * Restores the presentation to the given state.
+	 *
+	 * @param {Object} state As generated by getState()
+	 */
+	function setState( state ) {
+
+		if( typeof state === 'object' ) {
+			slide( deserialize( state.indexh ), deserialize( state.indexv ), deserialize( state.indexf ) );
+
+			var pausedFlag = deserialize( state.paused ),
+				overviewFlag = deserialize( state.overview );
+
+			if( typeof pausedFlag === 'boolean' && pausedFlag !== isPaused() ) {
+				togglePause( pausedFlag );
+			}
+
+			if( typeof overviewFlag === 'boolean' && overviewFlag !== isOverview() ) {
+				toggleOverview( overviewFlag );
+			}
+		}
+
+	}
+
+	/**
+	 * Return a sorted fragments list, ordered by an increasing
+	 * "data-fragment-index" attribute.
+	 *
+	 * Fragments will be revealed in the order that they are returned by
+	 * this function, so you can use the index attributes to control the
+	 * order of fragment appearance.
+	 *
+	 * To maintain a sensible default fragment order, fragments are presumed
+	 * to be passed in document order. This function adds a "fragment-index"
+	 * attribute to each node if such an attribute is not already present,
+	 * and sets that attribute to an integer value which is the position of
+	 * the fragment within the fragments list.
+	 */
+	function sortFragments( fragments ) {
+
+		fragments = toArray( fragments );
+
+		var ordered = [],
+			unordered = [],
+			sorted = [];
+
+		// Group ordered and unordered elements
+		fragments.forEach( function( fragment, i ) {
+			if( fragment.hasAttribute( 'data-fragment-index' ) ) {
+				var index = parseInt( fragment.getAttribute( 'data-fragment-index' ), 10 );
+
+				if( !ordered[index] ) {
+					ordered[index] = [];
+				}
+
+				ordered[index].push( fragment );
+			}
+			else {
+				unordered.push( [ fragment ] );
+			}
+		} );
+
+		// Append fragments without explicit indices in their
+		// DOM order
+		ordered = ordered.concat( unordered );
+
+		// Manually count the index up per group to ensure there
+		// are no gaps
+		var index = 0;
+
+		// Push all fragments in their sorted order to an array,
+		// this flattens the groups
+		ordered.forEach( function( group ) {
+			group.forEach( function( fragment ) {
+				sorted.push( fragment );
+				fragment.setAttribute( 'data-fragment-index', index );
+			} );
+
+			index ++;
+		} );
+
+		return sorted;
+
+	}
+
+	/**
+	 * Navigate to the specified slide fragment.
+	 *
+	 * @param {Number} index The index of the fragment that
+	 * should be shown, -1 means all are invisible
+	 * @param {Number} offset Integer offset to apply to the
+	 * fragment index
+	 *
+	 * @return {Boolean} true if a change was made in any
+	 * fragments visibility as part of this call
+	 */
+	function navigateFragment( index, offset ) {
+
+		if( currentSlide && config.fragments ) {
+
+			var fragments = sortFragments( currentSlide.querySelectorAll( '.fragment' ) );
+			if( fragments.length ) {
+
+				// If no index is specified, find the current
+				if( typeof index !== 'number' ) {
+					var lastVisibleFragment = sortFragments( currentSlide.querySelectorAll( '.fragment.visible' ) ).pop();
+
+					if( lastVisibleFragment ) {
+						index = parseInt( lastVisibleFragment.getAttribute( 'data-fragment-index' ) || 0, 10 );
+					}
+					else {
+						index = -1;
+					}
+				}
+
+				// If an offset is specified, apply it to the index
+				if( typeof offset === 'number' ) {
+					index += offset;
+				}
+
+				var fragmentsShown = [],
+					fragmentsHidden = [];
+
+				toArray( fragments ).forEach( function( element, i ) {
+
+					if( element.hasAttribute( 'data-fragment-index' ) ) {
+						i = parseInt( element.getAttribute( 'data-fragment-index' ), 10 );
+					}
+
+					// Visible fragments
+					if( i <= index ) {
+						if( !element.classList.contains( 'visible' ) ) fragmentsShown.push( element );
+						element.classList.add( 'visible' );
+						element.classList.remove( 'current-fragment' );
+
+						// Announce the fragments one by one to the Screen Reader
+						dom.statusDiv.textContent = element.textContent;
+
+						if( i === index ) {
+							element.classList.add( 'current-fragment' );
+						}
+					}
+					// Hidden fragments
+					else {
+						if( element.classList.contains( 'visible' ) ) fragmentsHidden.push( element );
+						element.classList.remove( 'visible' );
+						element.classList.remove( 'current-fragment' );
+					}
+
+
+				} );
+
+				if( fragmentsHidden.length ) {
+					dispatchEvent( 'fragmenthidden', { fragment: fragmentsHidden[0], fragments: fragmentsHidden } );
+				}
+
+				if( fragmentsShown.length ) {
+					dispatchEvent( 'fragmentshown', { fragment: fragmentsShown[0], fragments: fragmentsShown } );
+				}
+
+				updateControls();
+				updateProgress();
+
+				return !!( fragmentsShown.length || fragmentsHidden.length );
+
+			}
+
+		}
+
+		return false;
+
+	}
+
+	/**
+	 * Navigate to the next slide fragment.
+	 *
+	 * @return {Boolean} true if there was a next fragment,
+	 * false otherwise
+	 */
+	function nextFragment() {
+
+		return navigateFragment( null, 1 );
+
+	}
+
+	/**
+	 * Navigate to the previous slide fragment.
+	 *
+	 * @return {Boolean} true if there was a previous fragment,
+	 * false otherwise
+	 */
+	function previousFragment() {
+
+		return navigateFragment( null, -1 );
+
+	}
+
+	/**
+	 * Cues a new automated slide if enabled in the config.
+	 */
+	function cueAutoSlide() {
+
+		cancelAutoSlide();
+
+		if( currentSlide ) {
+
+			var currentFragment = currentSlide.querySelector( '.current-fragment' );
+
+			var fragmentAutoSlide = currentFragment ? currentFragment.getAttribute( 'data-autoslide' ) : null;
+			var parentAutoSlide = currentSlide.parentNode ? currentSlide.parentNode.getAttribute( 'data-autoslide' ) : null;
+			var slideAutoSlide = currentSlide.getAttribute( 'data-autoslide' );
+
+			// Pick value in the following priority order:
+			// 1. Current fragment's data-autoslide
+			// 2. Current slide's data-autoslide
+			// 3. Parent slide's data-autoslide
+			// 4. Global autoSlide setting
+			if( fragmentAutoSlide ) {
+				autoSlide = parseInt( fragmentAutoSlide, 10 );
+			}
+			else if( slideAutoSlide ) {
+				autoSlide = parseInt( slideAutoSlide, 10 );
+			}
+			else if( parentAutoSlide ) {
+				autoSlide = parseInt( parentAutoSlide, 10 );
+			}
+			else {
+				autoSlide = config.autoSlide;
+			}
+
+			// If there are media elements with data-autoplay,
+			// automatically set the autoSlide duration to the
+			// length of that media. Not applicable if the slide
+			// is divided up into fragments.
+			if( currentSlide.querySelectorAll( '.fragment' ).length === 0 ) {
+				toArray( currentSlide.querySelectorAll( 'video, audio' ) ).forEach( function( el ) {
+					if( el.hasAttribute( 'data-autoplay' ) ) {
+						if( autoSlide && el.duration * 1000 > autoSlide ) {
+							autoSlide = ( el.duration * 1000 ) + 1000;
+						}
+					}
+				} );
+			}
+
+			// Cue the next auto-slide if:
+			// - There is an autoSlide value
+			// - Auto-sliding isn't paused by the user
+			// - The presentation isn't paused
+			// - The overview isn't active
+			// - The presentation isn't over
+			if( autoSlide && !autoSlidePaused && !isPaused() && !isOverview() && ( !Reveal.isLastSlide() || availableFragments().next || config.loop === true ) ) {
+				autoSlideTimeout = setTimeout( navigateNext, autoSlide );
+				autoSlideStartTime = Date.now();
+			}
+
+			if( autoSlidePlayer ) {
+				autoSlidePlayer.setPlaying( autoSlideTimeout !== -1 );
+			}
+
+		}
+
+	}
+
+	/**
+	 * Cancels any ongoing request to auto-slide.
+	 */
+	function cancelAutoSlide() {
+
+		clearTimeout( autoSlideTimeout );
+		autoSlideTimeout = -1;
+
+	}
+
+	function pauseAutoSlide() {
+
+		if( autoSlide && !autoSlidePaused ) {
+			autoSlidePaused = true;
+			dispatchEvent( 'autoslidepaused' );
+			clearTimeout( autoSlideTimeout );
+
+			if( autoSlidePlayer ) {
+				autoSlidePlayer.setPlaying( false );
+			}
+		}
+
+	}
+
+	function resumeAutoSlide() {
+
+		if( autoSlide && autoSlidePaused ) {
+			autoSlidePaused = false;
+			dispatchEvent( 'autoslideresumed' );
+			cueAutoSlide();
+		}
+
+	}
+
+	function navigateLeft() {
+
+		// Reverse for RTL
+		if( config.rtl ) {
+			if( ( isOverview() || nextFragment() === false ) && availableRoutes().left ) {
+				slide( indexh + 1 );
+			}
+		}
+		// Normal navigation
+		else if( ( isOverview() || previousFragment() === false ) && availableRoutes().left ) {
+			slide( indexh - 1 );
+		}
+
+	}
+
+	function navigateRight() {
+
+		// Reverse for RTL
+		if( config.rtl ) {
+			if( ( isOverview() || previousFragment() === false ) && availableRoutes().right ) {
+				slide( indexh - 1 );
+			}
+		}
+		// Normal navigation
+		else if( ( isOverview() || nextFragment() === false ) && availableRoutes().right ) {
+			slide( indexh + 1 );
+		}
+
+	}
+
+	function navigateUp() {
+
+		// Prioritize hiding fragments
+		if( ( isOverview() || previousFragment() === false ) && availableRoutes().up ) {
+			slide( indexh, indexv - 1 );
+		}
+
+	}
+
+	function navigateDown() {
+
+		// Prioritize revealing fragments
+		if( ( isOverview() || nextFragment() === false ) && availableRoutes().down ) {
+			slide( indexh, indexv + 1 );
+		}
+
+	}
+
+	/**
+	 * Navigates backwards, prioritized in the following order:
+	 * 1) Previous fragment
+	 * 2) Previous vertical slide
+	 * 3) Previous horizontal slide
+	 */
+	function navigatePrev() {
+
+		// Prioritize revealing fragments
+		if( previousFragment() === false ) {
+			if( availableRoutes().up ) {
+				navigateUp();
+			}
+			else {
+				// Fetch the previous horizontal slide, if there is one
+				var previousSlide;
+
+				if( config.rtl ) {
+					previousSlide = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.future' ) ).pop();
+				}
+				else {
+					previousSlide = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.past' ) ).pop();
+				}
+
+				if( previousSlide ) {
+					var v = ( previousSlide.querySelectorAll( 'section' ).length - 1 ) || undefined;
+					var h = indexh - 1;
+					slide( h, v );
+				}
+			}
+		}
+
+	}
+
+	/**
+	 * The reverse of #navigatePrev().
+	 */
+	function navigateNext() {
+
+		// Prioritize revealing fragments
+		if( nextFragment() === false ) {
+			if( availableRoutes().down ) {
+				navigateDown();
+			}
+			else if( config.rtl ) {
+				navigateLeft();
+			}
+			else {
+				navigateRight();
+			}
+		}
+
+		// If auto-sliding is enabled we need to cue up
+		// another timeout
+		cueAutoSlide();
+
+	}
+
+	/**
+	 * Checks if the target element prevents the triggering of
+	 * swipe navigation.
+	 */
+	function isSwipePrevented( target ) {
+
+		while( target && typeof target.hasAttribute === 'function' ) {
+			if( target.hasAttribute( 'data-prevent-swipe' ) ) return true;
+			target = target.parentNode;
+		}
+
+		return false;
+
+	}
+
+
+	// --------------------------------------------------------------------//
+	// ----------------------------- EVENTS -------------------------------//
+	// --------------------------------------------------------------------//
+
+	/**
+	 * Called by all event handlers that are based on user
+	 * input.
+	 */
+	function onUserInput( event ) {
+
+		if( config.autoSlideStoppable ) {
+			pauseAutoSlide();
+		}
+
+	}
+
+	/**
+	 * Handler for the document level 'keypress' event.
+	 */
+	function onDocumentKeyPress( event ) {
+
+		// Check if the pressed key is question mark
+		if( event.shiftKey && event.charCode === 63 ) {
+			if( dom.overlay ) {
+				closeOverlay();
+			}
+			else {
+				showHelp( true );
+			}
+		}
+
+	}
+
+	/**
+	 * Handler for the document level 'keydown' event.
+	 */
+	function onDocumentKeyDown( event ) {
+
+		// If there's a condition specified and it returns false,
+		// ignore this event
+		if( typeof config.keyboardCondition === 'function' && config.keyboardCondition() === false ) {
+			return true;
+		}
+
+		// Remember if auto-sliding was paused so we can toggle it
+		var autoSlideWasPaused = autoSlidePaused;
+
+		onUserInput( event );
+
+		// Check if there's a focused element that could be using
+		// the keyboard
+		var activeElementIsCE = document.activeElement && document.activeElement.contentEditable !== 'inherit';
+		var activeElementIsInput = document.activeElement && document.activeElement.tagName && /input|textarea/i.test( document.activeElement.tagName );
+
+		// Disregard the event if there's a focused element or a
+		// keyboard modifier key is present
+		if( activeElementIsCE || activeElementIsInput || (event.shiftKey && event.keyCode !== 32) || event.altKey || event.ctrlKey || event.metaKey ) return;
+
+		// While paused only allow resume keyboard events; 'b', '.''
+		var resumeKeyCodes = [66,190,191];
+		var key;
+
+		// Custom key bindings for togglePause should be able to resume
+		if( typeof config.keyboard === 'object' ) {
+			for( key in config.keyboard ) {
+				if( config.keyboard[key] === 'togglePause' ) {
+					resumeKeyCodes.push( parseInt( key, 10 ) );
+				}
+			}
+		}
+
+		if( isPaused() && resumeKeyCodes.indexOf( event.keyCode ) === -1 ) {
+			return false;
+		}
+
+		var triggered = false;
+
+		// 1. User defined key bindings
+		if( typeof config.keyboard === 'object' ) {
+
+			for( key in config.keyboard ) {
+
+				// Check if this binding matches the pressed key
+				if( parseInt( key, 10 ) === event.keyCode ) {
+
+					var value = config.keyboard[ key ];
+
+					// Callback function
+					if( typeof value === 'function' ) {
+						value.apply( null, [ event ] );
+					}
+					// String shortcuts to reveal.js API
+					else if( typeof value === 'string' && typeof Reveal[ value ] === 'function' ) {
+						Reveal[ value ].call();
+					}
+
+					triggered = true;
+
+				}
+
+			}
+
+		}
+
+		// 2. System defined key bindings
+		if( triggered === false ) {
+
+			// Assume true and try to prove false
+			triggered = true;
+
+			switch( event.keyCode ) {
+				// p, page up
+				case 80: case 33: navigatePrev(); break;
+				// n, page down
+				case 78: case 34: navigateNext(); break;
+				// h, left
+				case 72: case 37: navigateLeft(); break;
+				// l, right
+				case 76: case 39: navigateRight(); break;
+				// k, up
+				case 75: case 38: navigateUp(); break;
+				// j, down
+				case 74: case 40: navigateDown(); break;
+				// home
+				case 36: slide( 0 ); break;
+				// end
+				case 35: slide( Number.MAX_VALUE ); break;
+				// space
+				case 32: isOverview() ? deactivateOverview() : event.shiftKey ? navigatePrev() : navigateNext(); break;
+				// return
+				case 13: isOverview() ? deactivateOverview() : triggered = false; break;
+				// two-spot, semicolon, b, period, Logitech presenter tools "black screen" button
+				case 58: case 59: case 66: case 190: case 191: togglePause(); break;
+				// f
+				case 70: enterFullscreen(); break;
+				// a
+				case 65: if ( config.autoSlideStoppable ) toggleAutoSlide( autoSlideWasPaused ); break;
+				default:
+					triggered = false;
+			}
+
+		}
+
+		// If the input resulted in a triggered action we should prevent
+		// the browsers default behavior
+		if( triggered ) {
+			event.preventDefault && event.preventDefault();
+		}
+		// ESC or O key
+		else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && features.transforms3d ) {
+			if( dom.overlay ) {
+				closeOverlay();
+			}
+			else {
+				toggleOverview();
+			}
+
+			event.preventDefault && event.preventDefault();
+		}
+
+		// If auto-sliding is enabled we need to cue up
+		// another timeout
+		cueAutoSlide();
+
+	}
+
+	/**
+	 * Handler for the 'touchstart' event, enables support for
+	 * swipe and pinch gestures.
+	 */
+	function onTouchStart( event ) {
+
+		if( isSwipePrevented( event.target ) ) return true;
+
+		touch.startX = event.touches[0].clientX;
+		touch.startY = event.touches[0].clientY;
+		touch.startCount = event.touches.length;
+
+		// If there's two touches we need to memorize the distance
+		// between those two points to detect pinching
+		if( event.touches.length === 2 && config.overview ) {
+			touch.startSpan = distanceBetween( {
+				x: event.touches[1].clientX,
+				y: event.touches[1].clientY
+			}, {
+				x: touch.startX,
+				y: touch.startY
+			} );
+		}
+
+	}
+
+	/**
+	 * Handler for the 'touchmove' event.
+	 */
+	function onTouchMove( event ) {
+
+		if( isSwipePrevented( event.target ) ) return true;
+
+		// Each touch should only trigger one action
+		if( !touch.captured ) {
+			onUserInput( event );
+
+			var currentX = event.touches[0].clientX;
+			var currentY = event.touches[0].clientY;
+
+			// If the touch started with two points and still has
+			// two active touches; test for the pinch gesture
+			if( event.touches.length === 2 && touch.startCount === 2 && config.overview ) {
+
+				// The current distance in pixels between the two touch points
+				var currentSpan = distanceBetween( {
+					x: event.touches[1].clientX,
+					y: event.touches[1].clientY
+				}, {
+					x: touch.startX,
+					y: touch.startY
+				} );
+
+				// If the span is larger than the desire amount we've got
+				// ourselves a pinch
+				if( Math.abs( touch.startSpan - currentSpan ) > touch.threshold ) {
+					touch.captured = true;
+
+					if( currentSpan < touch.startSpan ) {
+						activateOverview();
+					}
+					else {
+						deactivateOverview();
+					}
+				}
+
+				event.preventDefault();
+
+			}
+			// There was only one touch point, look for a swipe
+			else if( event.touches.length === 1 && touch.startCount !== 2 ) {
+
+				var deltaX = currentX - touch.startX,
+					deltaY = currentY - touch.startY;
+
+				if( deltaX > touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
+					touch.captured = true;
+					navigateLeft();
+				}
+				else if( deltaX < -touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
+					touch.captured = true;
+					navigateRight();
+				}
+				else if( deltaY > touch.threshold ) {
+					touch.captured = true;
+					navigateUp();
+				}
+				else if( deltaY < -touch.threshold ) {
+					touch.captured = true;
+					navigateDown();
+				}
+
+				// If we're embedded, only block touch events if they have
+				// triggered an action
+				if( config.embedded ) {
+					if( touch.captured || isVerticalSlide( currentSlide ) ) {
+						event.preventDefault();
+					}
+				}
+				// Not embedded? Block them all to avoid needless tossing
+				// around of the viewport in iOS
+				else {
+					event.preventDefault();
+				}
+
+			}
+		}
+		// There's a bug with swiping on some Android devices unless
+		// the default action is always prevented
+		else if( navigator.userAgent.match( /android/gi ) ) {
+			event.preventDefault();
+		}
+
+	}
+
+	/**
+	 * Handler for the 'touchend' event.
+	 */
+	function onTouchEnd( event ) {
+
+		touch.captured = false;
+
+	}
+
+	/**
+	 * Convert pointer down to touch start.
+	 */
+	function onPointerDown( event ) {
+
+		if( event.pointerType === event.MSPOINTER_TYPE_TOUCH || event.pointerType === "touch" ) {
+			event.touches = [{ clientX: event.clientX, clientY: event.clientY }];
+			onTouchStart( event );
+		}
+
+	}
+
+	/**
+	 * Convert pointer move to touch move.
+	 */
+	function onPointerMove( event ) {
+
+		if( event.pointerType === event.MSPOINTER_TYPE_TOUCH || event.pointerType === "touch" )  {
+			event.touches = [{ clientX: event.clientX, clientY: event.clientY }];
+			onTouchMove( event );
+		}
+
+	}
+
+	/**
+	 * Convert pointer up to touch end.
+	 */
+	function onPointerUp( event ) {
+
+		if( event.pointerType === event.MSPOINTER_TYPE_TOUCH || event.pointerType === "touch" )  {
+			event.touches = [{ clientX: event.clientX, clientY: event.clientY }];
+			onTouchEnd( event );
+		}
+
+	}
+
+	/**
+	 * Handles mouse wheel scrolling, throttled to avoid skipping
+	 * multiple slides.
+	 */
+	function onDocumentMouseScroll( event ) {
+
+		if( Date.now() - lastMouseWheelStep > 600 ) {
+
+			lastMouseWheelStep = Date.now();
+
+			var delta = event.detail || -event.wheelDelta;
+			if( delta > 0 ) {
+				navigateNext();
+			}
+			else {
+				navigatePrev();
+			}
+
+		}
+
+	}
+
+	/**
+	 * Clicking on the progress bar results in a navigation to the
+	 * closest approximate horizontal slide using this equation:
+	 *
+	 * ( clickX / presentationWidth ) * numberOfSlides
+	 */
+	function onProgressClicked( event ) {
+
+		onUserInput( event );
+
+		event.preventDefault();
+
+		var slidesTotal = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).length;
+		var slideIndex = Math.floor( ( event.clientX / dom.wrapper.offsetWidth ) * slidesTotal );
+
+		if( config.rtl ) {
+			slideIndex = slidesTotal - slideIndex;
+		}
+
+		slide( slideIndex );
+
+	}
+
+	/**
+	 * Event handler for navigation control buttons.
+	 */
+	function onNavigateLeftClicked( event ) { event.preventDefault(); onUserInput(); navigateLeft(); }
+	function onNavigateRightClicked( event ) { event.preventDefault(); onUserInput(); navigateRight(); }
+	function onNavigateUpClicked( event ) { event.preventDefault(); onUserInput(); navigateUp(); }
+	function onNavigateDownClicked( event ) { event.preventDefault(); onUserInput(); navigateDown(); }
+	function onNavigatePrevClicked( event ) { event.preventDefault(); onUserInput(); navigatePrev(); }
+	function onNavigateNextClicked( event ) { event.preventDefault(); onUserInput(); navigateNext(); }
+
+	/**
+	 * Handler for the window level 'hashchange' event.
+	 */
+	function onWindowHashChange( event ) {
+
+		readURL();
+
+	}
+
+	/**
+	 * Handler for the window level 'resize' event.
+	 */
+	function onWindowResize( event ) {
+
+		layout();
+
+	}
+
+	/**
+	 * Handle for the window level 'visibilitychange' event.
+	 */
+	function onPageVisibilityChange( event ) {
+
+		var isHidden =  document.webkitHidden ||
+						document.msHidden ||
+						document.hidden;
+
+		// If, after clicking a link or similar and we're coming back,
+		// focus the document.body to ensure we can use keyboard shortcuts
+		if( isHidden === false && document.activeElement !== document.body ) {
+			// Not all elements support .blur() - SVGs among them.
+			if( typeof document.activeElement.blur === 'function' ) {
+				document.activeElement.blur();
+			}
+			document.body.focus();
+		}
+
+	}
+
+	/**
+	 * Invoked when a slide is and we're in the overview.
+	 */
+	function onOverviewSlideClicked( event ) {
+
+		// TODO There's a bug here where the event listeners are not
+		// removed after deactivating the overview.
+		if( eventsAreBound && isOverview() ) {
+			event.preventDefault();
+
+			var element = event.target;
+
+			while( element && !element.nodeName.match( /section/gi ) ) {
+				element = element.parentNode;
+			}
+
+			if( element && !element.classList.contains( 'disabled' ) ) {
+
+				deactivateOverview();
+
+				if( element.nodeName.match( /section/gi ) ) {
+					var h = parseInt( element.getAttribute( 'data-index-h' ), 10 ),
+						v = parseInt( element.getAttribute( 'data-index-v' ), 10 );
+
+					slide( h, v );
+				}
+
+			}
+		}
+
+	}
+
+	/**
+	 * Handles clicks on links that are set to preview in the
+	 * iframe overlay.
+	 */
+	function onPreviewLinkClicked( event ) {
+
+		if( event.currentTarget && event.currentTarget.hasAttribute( 'href' ) ) {
+			var url = event.currentTarget.getAttribute( 'href' );
+			if( url ) {
+				showPreview( url );
+				event.preventDefault();
+			}
+		}
+
+	}
+
+	/**
+	 * Handles click on the auto-sliding controls element.
+	 */
+	function onAutoSlidePlayerClick( event ) {
+
+		// Replay
+		if( Reveal.isLastSlide() && config.loop === false ) {
+			slide( 0, 0 );
+			resumeAutoSlide();
+		}
+		// Resume
+		else if( autoSlidePaused ) {
+			resumeAutoSlide();
+		}
+		// Pause
+		else {
+			pauseAutoSlide();
+		}
+
+	}
+
+
+	// --------------------------------------------------------------------//
+	// ------------------------ PLAYBACK COMPONENT ------------------------//
+	// --------------------------------------------------------------------//
+
+
+	/**
+	 * Constructor for the playback component, which displays
+	 * play/pause/progress controls.
+	 *
+	 * @param {HTMLElement} container The component will append
+	 * itself to this
+	 * @param {Function} progressCheck A method which will be
+	 * called frequently to get the current progress on a range
+	 * of 0-1
+	 */
+	function Playback( container, progressCheck ) {
+
+		// Cosmetics
+		this.diameter = 50;
+		this.thickness = 3;
+
+		// Flags if we are currently playing
+		this.playing = false;
+
+		// Current progress on a 0-1 range
+		this.progress = 0;
+
+		// Used to loop the animation smoothly
+		this.progressOffset = 1;
+
+		this.container = container;
+		this.progressCheck = progressCheck;
+
+		this.canvas = document.createElement( 'canvas' );
+		this.canvas.className = 'playback';
+		this.canvas.width = this.diameter;
+		this.canvas.height = this.diameter;
+		this.context = this.canvas.getContext( '2d' );
+
+		this.container.appendChild( this.canvas );
+
+		this.render();
+
+	}
+
+	Playback.prototype.setPlaying = function( value ) {
+
+		var wasPlaying = this.playing;
+
+		this.playing = value;
+
+		// Start repainting if we weren't already
+		if( !wasPlaying && this.playing ) {
+			this.animate();
+		}
+		else {
+			this.render();
+		}
+
+	};
+
+	Playback.prototype.animate = function() {
+
+		var progressBefore = this.progress;
+
+		this.progress = this.progressCheck();
+
+		// When we loop, offset the progress so that it eases
+		// smoothly rather than immediately resetting
+		if( progressBefore > 0.8 && this.progress < 0.2 ) {
+			this.progressOffset = this.progress;
+		}
+
+		this.render();
+
+		if( this.playing ) {
+			features.requestAnimationFrameMethod.call( window, this.animate.bind( this ) );
+		}
+
+	};
+
+	/**
+	 * Renders the current progress and playback state.
+	 */
+	Playback.prototype.render = function() {
+
+		var progress = this.playing ? this.progress : 0,
+			radius = ( this.diameter / 2 ) - this.thickness,
+			x = this.diameter / 2,
+			y = this.diameter / 2,
+			iconSize = 14;
+
+		// Ease towards 1
+		this.progressOffset += ( 1 - this.progressOffset ) * 0.1;
+
+		var endAngle = ( - Math.PI / 2 ) + ( progress * ( Math.PI * 2 ) );
+		var startAngle = ( - Math.PI / 2 ) + ( this.progressOffset * ( Math.PI * 2 ) );
+
+		this.context.save();
+		this.context.clearRect( 0, 0, this.diameter, this.diameter );
+
+		// Solid background color
+		this.context.beginPath();
+		this.context.arc( x, y, radius + 2, 0, Math.PI * 2, false );
+		this.context.fillStyle = 'rgba( 0, 0, 0, 0.4 )';
+		this.context.fill();
+
+		// Draw progress track
+		this.context.beginPath();
+		this.context.arc( x, y, radius, 0, Math.PI * 2, false );
+		this.context.lineWidth = this.thickness;
+		this.context.strokeStyle = '#666';
+		this.context.stroke();
+
+		if( this.playing ) {
+			// Draw progress on top of track
+			this.context.beginPath();
+			this.context.arc( x, y, radius, startAngle, endAngle, false );
+			this.context.lineWidth = this.thickness;
+			this.context.strokeStyle = '#fff';
+			this.context.stroke();
+		}
+
+		this.context.translate( x - ( iconSize / 2 ), y - ( iconSize / 2 ) );
+
+		// Draw play/pause icons
+		if( this.playing ) {
+			this.context.fillStyle = '#fff';
+			this.context.fillRect( 0, 0, iconSize / 2 - 2, iconSize );
+			this.context.fillRect( iconSize / 2 + 2, 0, iconSize / 2 - 2, iconSize );
+		}
+		else {
+			this.context.beginPath();
+			this.context.translate( 2, 0 );
+			this.context.moveTo( 0, 0 );
+			this.context.lineTo( iconSize - 2, iconSize / 2 );
+			this.context.lineTo( 0, iconSize );
+			this.context.fillStyle = '#fff';
+			this.context.fill();
+		}
+
+		this.context.restore();
+
+	};
+
+	Playback.prototype.on = function( type, listener ) {
+		this.canvas.addEventListener( type, listener, false );
+	};
+
+	Playback.prototype.off = function( type, listener ) {
+		this.canvas.removeEventListener( type, listener, false );
+	};
+
+	Playback.prototype.destroy = function() {
+
+		this.playing = false;
+
+		if( this.canvas.parentNode ) {
+			this.container.removeChild( this.canvas );
+		}
+
+	};
+
+
+	// --------------------------------------------------------------------//
+	// ------------------------------- API --------------------------------//
+	// --------------------------------------------------------------------//
+
+
+	Reveal = {
+		initialize: initialize,
+		configure: configure,
+		sync: sync,
+
+		// Navigation methods
+		slide: slide,
+		left: navigateLeft,
+		right: navigateRight,
+		up: navigateUp,
+		down: navigateDown,
+		prev: navigatePrev,
+		next: navigateNext,
+
+		// Fragment methods
+		navigateFragment: navigateFragment,
+		prevFragment: previousFragment,
+		nextFragment: nextFragment,
+
+		// Deprecated aliases
+		navigateTo: slide,
+		navigateLeft: navigateLeft,
+		navigateRight: navigateRight,
+		navigateUp: navigateUp,
+		navigateDown: navigateDown,
+		navigatePrev: navigatePrev,
+		navigateNext: navigateNext,
+
+		// Forces an update in slide layout
+		layout: layout,
+
+		// Returns an object with the available routes as booleans (left/right/top/bottom)
+		availableRoutes: availableRoutes,
+
+		// Returns an object with the available fragments as booleans (prev/next)
+		availableFragments: availableFragments,
+
+		// Toggles the overview mode on/off
+		toggleOverview: toggleOverview,
+
+		// Toggles the "black screen" mode on/off
+		togglePause: togglePause,
+
+		// Toggles the auto slide mode on/off
+		toggleAutoSlide: toggleAutoSlide,
+
+		// State checks
+		isOverview: isOverview,
+		isPaused: isPaused,
+		isAutoSliding: isAutoSliding,
+
+		// Adds or removes all internal event listeners (such as keyboard)
+		addEventListeners: addEventListeners,
+		removeEventListeners: removeEventListeners,
+
+		// Facility for persisting and restoring the presentation state
+		getState: getState,
+		setState: setState,
+
+		// Presentation progress on range of 0-1
+		getProgress: getProgress,
+
+		// Returns the indices of the current, or specified, slide
+		getIndices: getIndices,
+
+		getTotalSlides: getTotalSlides,
+
+		// Returns the slide element at the specified index
+		getSlide: getSlide,
+
+		// Returns the slide background element at the specified index
+		getSlideBackground: getSlideBackground,
+
+		// Returns the speaker notes string for a slide, or null
+		getSlideNotes: getSlideNotes,
+
+		// Returns the previous slide element, may be null
+		getPreviousSlide: function() {
+			return previousSlide;
+		},
+
+		// Returns the current slide element
+		getCurrentSlide: function() {
+			return currentSlide;
+		},
+
+		// Returns the current scale of the presentation content
+		getScale: function() {
+			return scale;
+		},
+
+		// Returns the current configuration object
+		getConfig: function() {
+			return config;
+		},
+
+		// Helper method, retrieves query string as a key/value hash
+		getQueryHash: function() {
+			var query = {};
+
+			location.search.replace( /[A-Z0-9]+?=([\w\.%-]*)/gi, function(a) {
+				query[ a.split( '=' ).shift() ] = a.split( '=' ).pop();
+			} );
+
+			// Basic deserialization
+			for( var i in query ) {
+				var value = query[ i ];
+
+				query[ i ] = deserialize( unescape( value ) );
+			}
+
+			return query;
+		},
+
+		// Returns true if we're currently on the first slide
+		isFirstSlide: function() {
+			return ( indexh === 0 && indexv === 0 );
+		},
+
+		// Returns true if we're currently on the last slide
+		isLastSlide: function() {
+			if( currentSlide ) {
+				// Does this slide has next a sibling?
+				if( currentSlide.nextElementSibling ) return false;
+
+				// If it's vertical, does its parent have a next sibling?
+				if( isVerticalSlide( currentSlide ) && currentSlide.parentNode.nextElementSibling ) return false;
+
+				return true;
+			}
+
+			return false;
+		},
+
+		// Checks if reveal.js has been loaded and is ready for use
+		isReady: function() {
+			return loaded;
+		},
+
+		// Forward event binding to the reveal DOM element
+		addEventListener: function( type, listener, useCapture ) {
+			if( 'addEventListener' in window ) {
+				( dom.wrapper || document.querySelector( '.reveal' ) ).addEventListener( type, listener, useCapture );
+			}
+		},
+		removeEventListener: function( type, listener, useCapture ) {
+			if( 'addEventListener' in window ) {
+				( dom.wrapper || document.querySelector( '.reveal' ) ).removeEventListener( type, listener, useCapture );
+			}
+		},
+
+		// Programatically triggers a keyboard event
+		triggerKey: function( keyCode ) {
+			onDocumentKeyDown( { keyCode: keyCode } );
+		}
+	};
+
+	return Reveal;
+
+}));
diff --git a/2017-08-11-DebConf17/lib/css/zenburn.css b/2017-08-11-DebConf17/lib/css/zenburn.css
new file mode 100644
index 0000000..a7ed95e
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/css/zenburn.css
@@ -0,0 +1,115 @@
+/*
+Zenburn style from voldmar.ru (c) Vladimir Epifanov <voldmar at voldmar.ru>
+based on dark.css by Ivan Sagalaev
+*/
+
+.hljs {
+  display: block;
+  overflow-x: auto;
+  padding: 0.5em;
+  background: #3f3f3f;
+  color: #dcdcdc;
+  -webkit-text-size-adjust: none;
+}
+
+.hljs-keyword,
+.hljs-tag,
+.css .hljs-class,
+.css .hljs-id,
+.lisp .hljs-title,
+.nginx .hljs-title,
+.hljs-request,
+.hljs-status,
+.clojure .hljs-attribute {
+  color: #e3ceab;
+}
+
+.django .hljs-template_tag,
+.django .hljs-variable,
+.django .hljs-filter .hljs-argument {
+  color: #dcdcdc;
+}
+
+.hljs-number,
+.hljs-date {
+  color: #8cd0d3;
+}
+
+.dos .hljs-envvar,
+.dos .hljs-stream,
+.hljs-variable,
+.apache .hljs-sqbracket,
+.hljs-name {
+  color: #efdcbc;
+}
+
+.dos .hljs-flow,
+.diff .hljs-change,
+.python .exception,
+.python .hljs-built_in,
+.hljs-literal,
+.tex .hljs-special {
+  color: #efefaf;
+}
+
+.diff .hljs-chunk,
+.hljs-subst {
+  color: #8f8f8f;
+}
+
+.dos .hljs-keyword,
+.hljs-decorator,
+.hljs-title,
+.hljs-type,
+.diff .hljs-header,
+.ruby .hljs-class .hljs-parent,
+.apache .hljs-tag,
+.nginx .hljs-built_in,
+.tex .hljs-command,
+.hljs-prompt {
+  color: #efef8f;
+}
+
+.dos .hljs-winutils,
+.ruby .hljs-symbol,
+.ruby .hljs-symbol .hljs-string,
+.ruby .hljs-string {
+  color: #dca3a3;
+}
+
+.diff .hljs-deletion,
+.hljs-string,
+.hljs-tag .hljs-value,
+.hljs-preprocessor,
+.hljs-pragma,
+.hljs-built_in,
+.smalltalk .hljs-class,
+.smalltalk .hljs-localvars,
+.smalltalk .hljs-array,
+.css .hljs-rule .hljs-value,
+.hljs-attr_selector,
+.hljs-pseudo,
+.apache .hljs-cbracket,
+.tex .hljs-formula,
+.coffeescript .hljs-attribute {
+  color: #cc9393;
+}
+
+.hljs-shebang,
+.diff .hljs-addition,
+.hljs-comment,
+.hljs-annotation,
+.hljs-pi,
+.hljs-doctype {
+  color: #7f9f7f;
+}
+
+.coffeescript .javascript,
+.javascript .xml,
+.tex .hljs-formula,
+.xml .javascript,
+.xml .vbscript,
+.xml .css,
+.xml .hljs-cdata {
+  opacity: 0.5;
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/lib/font/league-gothic/LICENSE b/2017-08-11-DebConf17/lib/font/league-gothic/LICENSE
new file mode 100644
index 0000000..29513e9
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/font/league-gothic/LICENSE
@@ -0,0 +1,2 @@
+SIL Open Font License (OFL)
+http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFL
diff --git a/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.css b/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.css
new file mode 100644
index 0000000..44a33a1
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.css
@@ -0,0 +1,10 @@
+ at font-face {
+    font-family: 'League Gothic';
+    src: url('league-gothic.eot');
+    src: url('league-gothic.eot?#iefix') format('embedded-opentype'),
+         url('league-gothic.woff') format('woff'),
+         url('league-gothic.ttf') format('truetype');
+
+    font-weight: normal;
+    font-style: normal;
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.eot b/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.eot
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diff --git a/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.woff b/2017-08-11-DebConf17/lib/font/league-gothic/league-gothic.woff
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diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/LICENSE b/2017-08-11-DebConf17/lib/font/source-sans-pro/LICENSE
new file mode 100644
index 0000000..71b7a02
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/font/source-sans-pro/LICENSE
@@ -0,0 +1,45 @@
+SIL Open Font License
+
+Copyright 2010, 2012 Adobe Systems Incorporated (http://www.adobe.com/), with Reserved Font Name ‘Source’. All Rights Reserved. Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL
+
+—————————————————————————————-
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+—————————————————————————————-
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide development of collaborative font projects, to support the font creation efforts of academic and linguistic communities, and to provide a free and open framework in which fonts may be shared and improved in partnership with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and redistributed freely as long as they are not sold by themselves. The fonts, including any derivative works, can be bundled, embedded, redistributed and/or sold with any software provided that any reserved names are not used by derivative works. The fonts and derivatives, however, cannot be released under any other type of license. The requirement for fonts to remain under this license does not apply to any document creat [...]
+
+DEFINITIONS
+“Font Software” refers to the set of files released by the Copyright Holder(s) under this license and clearly marked as such. This may include source files, build scripts and documentation.
+
+“Reserved Font Name” refers to any names specified as such after the copyright statement(s).
+
+“Original Version” refers to the collection of Font Software components as distributed by the Copyright Holder(s).
+
+“Modified Version” refers to any derivative made by adding to, deleting, or substituting—in part or in whole—any of the components of the Original Version, by changing formats or by porting the Font Software to a new environment.
+
+“Author” refers to any designer, engineer, programmer, technical writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining a copy of the Font Software, to use, study, copy, merge, embed, modify, redistribute, and sell modified and unmodified copies of the Font Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components, in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled, redistributed and/or sold with any software, provided that each copy contains the above copyright notice and this license. These can be included either as stand-alone text files, human-readable headers or in the appropriate machine-readable metadata fields within text or binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font Name(s) unless explicit written permission is granted by the corresponding Copyright Holder. This restriction only applies to the primary font name as presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall not be used to promote, endorse or advertise any Modified Version, except to acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with their explicit written permission.
+
+5) The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this license, and must not be distributed under any other license. The requirement for fonts to remain under this license does not apply to any document created using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM [...]
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-italic.eot b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-italic.eot
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diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-regular.eot b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-regular.eot
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diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-semibold.eot b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-semibold.eot
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diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-semibolditalic.ttf b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-semibolditalic.ttf
new file mode 100755
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diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-semibolditalic.woff b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro-semibolditalic.woff
new file mode 100755
index 0000000..7c2d3c7
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diff --git a/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro.css b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro.css
new file mode 100644
index 0000000..0707a4f
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/font/source-sans-pro/source-sans-pro.css
@@ -0,0 +1,39 @@
+ at font-face {
+    font-family: 'Source Sans Pro';
+    src: url('source-sans-pro-regular.eot');
+    src: url('source-sans-pro-regular.eot?#iefix') format('embedded-opentype'),
+         url('source-sans-pro-regular.woff') format('woff'),
+         url('source-sans-pro-regular.ttf') format('truetype');
+    font-weight: normal;
+    font-style: normal;
+}
+
+ at font-face {
+    font-family: 'Source Sans Pro';
+    src: url('source-sans-pro-italic.eot');
+    src: url('source-sans-pro-italic.eot?#iefix') format('embedded-opentype'),
+         url('source-sans-pro-italic.woff') format('woff'),
+         url('source-sans-pro-italic.ttf') format('truetype');
+    font-weight: normal;
+    font-style: italic;
+}
+
+ at font-face {
+    font-family: 'Source Sans Pro';
+    src: url('source-sans-pro-semibold.eot');
+    src: url('source-sans-pro-semibold.eot?#iefix') format('embedded-opentype'),
+         url('source-sans-pro-semibold.woff') format('woff'),
+         url('source-sans-pro-semibold.ttf') format('truetype');
+    font-weight: 600;
+    font-style: normal;
+}
+
+ at font-face {
+    font-family: 'Source Sans Pro';
+    src: url('source-sans-pro-semibolditalic.eot');
+    src: url('source-sans-pro-semibolditalic.eot?#iefix') format('embedded-opentype'),
+         url('source-sans-pro-semibolditalic.woff') format('woff'),
+         url('source-sans-pro-semibolditalic.ttf') format('truetype');
+    font-weight: 600;
+    font-style: italic;
+}
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/lib/js/classList.js b/2017-08-11-DebConf17/lib/js/classList.js
new file mode 100644
index 0000000..44f2b4c
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/js/classList.js
@@ -0,0 +1,2 @@
+/*! @source http://purl.eligrey.com/github/classList.js/blob/master/classList.js*/
+if(typeof document!=="undefined"&&!("classList" in document.createElement("a"))){(function(j){var a="classList",f="prototype",m=(j.HTMLElement||j.Element)[f],b=Object,k=String[f].trim||function(){return this.replace(/^\s+|\s+$/g,"")},c=Array[f].indexOf||function(q){var p=0,o=this.length;for(;p<o;p++){if(p in this&&this[p]===q){return p}}return -1},n=function(o,p){this.name=o;this.code=DOMException[o];this.message=p},g=function(p,o){if(o===""){throw new n("SYNTAX_ERR","An invalid or illeg [...]
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/lib/js/head.min.js b/2017-08-11-DebConf17/lib/js/head.min.js
new file mode 100644
index 0000000..6242b0f
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/js/head.min.js
@@ -0,0 +1,8 @@
+/**
+    Head JS     The only script in your <HEAD>
+    Copyright   Tero Piirainen (tipiirai)
+    License     MIT / http://bit.ly/mit-license
+    Version     0.96
+
+    http://headjs.com
+*/(function(a){function z(){d||(d=!0,s(e,function(a){p(a)}))}function y(c,d){var e=a.createElement("script");e.type="text/"+(c.type||"javascript"),e.src=c.src||c,e.async=!1,e.onreadystatechange=e.onload=function(){var a=e.readyState;!d.done&&(!a||/loaded|complete/.test(a))&&(d.done=!0,d())},(a.body||b).appendChild(e)}function x(a,b){if(a.state==o)return b&&b();if(a.state==n)return k.ready(a.name,b);if(a.state==m)return a.onpreload.push(function(){x(a,b)});a.state=n,y(a.url,function(){a.s [...]
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/lib/js/html5shiv.js b/2017-08-11-DebConf17/lib/js/html5shiv.js
new file mode 100644
index 0000000..50649b9
--- /dev/null
+++ b/2017-08-11-DebConf17/lib/js/html5shiv.js
@@ -0,0 +1,7 @@
+document.createElement('header');
+document.createElement('nav');
+document.createElement('section');
+document.createElement('article');
+document.createElement('aside');
+document.createElement('footer');
+document.createElement('hgroup');
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/plugin/highlight/highlight.js b/2017-08-11-DebConf17/plugin/highlight/highlight.js
new file mode 100644
index 0000000..189326a
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/highlight/highlight.js
@@ -0,0 +1,32 @@
+// START CUSTOM REVEAL.JS INTEGRATION
+(function() {
+	if( typeof window.addEventListener === 'function' ) {
+		var hljs_nodes = document.querySelectorAll( 'pre code' );
+
+		for( var i = 0, len = hljs_nodes.length; i < len; i++ ) {
+			var element = hljs_nodes[i];
+
+			// trim whitespace if data-trim attribute is present
+			if( element.hasAttribute( 'data-trim' ) && typeof element.innerHTML.trim === 'function' ) {
+				element.innerHTML = element.innerHTML.trim();
+			}
+
+			// Now escape html unless prevented by author
+			if( ! element.hasAttribute( 'data-noescape' )) {
+				element.innerHTML = element.innerHTML.replace(/</g,"<").replace(/>/g,">");
+			}
+
+			// re-highlight when focus is lost (for edited code)
+			element.addEventListener( 'focusout', function( event ) {
+				hljs.highlightBlock( event.currentTarget );
+			}, false );
+		}
+	}
+})();
+// END CUSTOM REVEAL.JS INTEGRATION
+
+// highlight.js v8.9.1 with support for all available languages
+
+!function(e){"undefined"!=typeof exports?e(exports):(window.hljs=e({}),"function"==typeof define&&define.amd&&define("hljs",[],function(){return window.hljs}))}(function(e){function n(e){return e.replace(/&/gm,"&").replace(/</gm,"<").replace(/>/gm,">")}function t(e){return e.nodeName.toLowerCase()}function r(e,n){var t=e&&e.exec(n);return t&&0==t.index}function a(e){return/^(no-?highlight|plain|text)$/i.test(e)}function i(e){var n,t,r,i=e.className+" ";if(i+=e.parentNode?e.pare [...]
+v:[e.C(";","$",{r:0}),e.C("#cs","#ce"),e.C("#comments-start","#comments-end")]},n={cN:"variable",b:"\\$[A-z0-9_]+"},l={cN:"string",v:[{b:/"/,e:/"/,c:[{b:/""/,r:0}]},{b:/'/,e:/'/,c:[{b:/''/,r:0}]}]},o={v:[e.BNM,e.CNM]},a={cN:"preprocessor",b:"#",e:"$",k:"include include-once NoTrayIcon OnAutoItStartRegister RequireAdmin pragma Au3Stripper_Ignore_Funcs Au3Stripper_Ignore_Variables Au3Stripper_Off Au3Stripper_On Au3Stripper_Parameters AutoIt3Wrapper_Add_Constants AutoIt3Wrapper_Au3Check_Par [...]
+c:[{cN:"comment",b:/\(\*/,e:/\*\)/},e.ASM,e.QSM,e.CNM,{cN:"list",b:/\{/,e:/\}/,i:/:/}]}});hljs.registerLanguage("julia",function(r){var e={keyword:"in abstract baremodule begin bitstype break catch ccall const continue do else elseif end export finally for function global if immutable import importall let local macro module quote return try type typealias using while",literal:"true false ANY ARGS CPU_CORES C_NULL DL_LOAD_PATH DevNull ENDIAN_BOM ENV I|0 Inf Inf16 Inf32 InsertionSort JULIA [...]
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/plugin/markdown/example.html b/2017-08-11-DebConf17/plugin/markdown/example.html
new file mode 100644
index 0000000..36f6a51
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/markdown/example.html
@@ -0,0 +1,129 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Markdown Demo</title>
+
+		<link rel="stylesheet" href="../../css/reveal.css">
+		<link rel="stylesheet" href="../../css/theme/white.css" id="theme">
+
+        <link rel="stylesheet" href="../../lib/css/zenburn.css">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+                <!-- Use external markdown resource, separate slides by three newlines; vertical slides by two newlines -->
+                <section data-markdown="example.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n"></section>
+
+                <!-- Slides are separated by three dashes (quick 'n dirty regular expression) -->
+                <section data-markdown data-separator="---">
+                    <script type="text/template">
+                        ## Demo 1
+                        Slide 1
+                        ---
+                        ## Demo 1
+                        Slide 2
+                        ---
+                        ## Demo 1
+                        Slide 3
+                    </script>
+                </section>
+
+                <!-- Slides are separated by newline + three dashes + newline, vertical slides identical but two dashes -->
+                <section data-markdown data-separator="^\n---\n$" data-separator-vertical="^\n--\n$">
+                    <script type="text/template">
+                        ## Demo 2
+                        Slide 1.1
+
+                        --
+
+                        ## Demo 2
+                        Slide 1.2
+
+                        ---
+
+                        ## Demo 2
+                        Slide 2
+                    </script>
+                </section>
+
+                <!-- No "extra" slides, since there are no separators defined (so they'll become horizontal rulers) -->
+                <section data-markdown>
+                    <script type="text/template">
+                        A
+
+                        ---
+
+                        B
+
+                        ---
+
+                        C
+                    </script>
+                </section>
+
+                <!-- Slide attributes -->
+                <section data-markdown>
+                    <script type="text/template">
+                        <!-- .slide: data-background="#000000" -->
+                        ## Slide attributes
+                    </script>
+                </section>
+
+                <!-- Element attributes -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ## Element attributes
+                        - Item 1 <!-- .element: class="fragment" data-fragment-index="2" -->
+                        - Item 2 <!-- .element: class="fragment" data-fragment-index="1" -->
+                    </script>
+                </section>
+
+                <!-- Code -->
+                <section data-markdown>
+                    <script type="text/template">
+                        ```php
+                        public function foo()
+                        {
+                            $foo = array(
+                                'bar' => 'bar'
+                            )
+                        }
+                        ```
+                    </script>
+                </section>
+
+            </div>
+		</div>
+
+		<script src="../../lib/js/head.min.js"></script>
+		<script src="../../js/reveal.js"></script>
+
+		<script>
+
+			Reveal.initialize({
+				controls: true,
+				progress: true,
+				history: true,
+				center: true,
+
+				// Optional libraries used to extend on reveal.js
+				dependencies: [
+					{ src: '../../lib/js/classList.js', condition: function() { return !document.body.classList; } },
+					{ src: 'marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
+                    { src: 'markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
+                    { src: '../highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
+					{ src: '../notes/notes.js' }
+				]
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/2017-08-11-DebConf17/plugin/markdown/example.md b/2017-08-11-DebConf17/plugin/markdown/example.md
new file mode 100644
index 0000000..6f6f577
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/markdown/example.md
@@ -0,0 +1,31 @@
+# Markdown Demo
+
+
+
+## External 1.1
+
+Content 1.1
+
+Note: This will only appear in the speaker notes window.
+
+
+## External 1.2
+
+Content 1.2
+
+
+
+## External 2
+
+Content 2.1
+
+
+
+## External 3.1
+
+Content 3.1
+
+
+## External 3.2
+
+Content 3.2
diff --git a/2017-08-11-DebConf17/plugin/markdown/markdown.js b/2017-08-11-DebConf17/plugin/markdown/markdown.js
new file mode 100755
index 0000000..f4035e2
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/markdown/markdown.js
@@ -0,0 +1,402 @@
+/**
+ * The reveal.js markdown plugin. Handles parsing of
+ * markdown inside of presentations as well as loading
+ * of external markdown documents.
+ */
+(function( root, factory ) {
+	if( typeof exports === 'object' ) {
+		module.exports = factory( require( './marked' ) );
+	}
+	else {
+		// Browser globals (root is window)
+		root.RevealMarkdown = factory( root.marked );
+		root.RevealMarkdown.initialize();
+	}
+}( this, function( marked ) {
+
+	if( typeof marked === 'undefined' ) {
+		throw 'The reveal.js Markdown plugin requires marked to be loaded';
+	}
+
+	if( typeof hljs !== 'undefined' ) {
+		marked.setOptions({
+			highlight: function( lang, code ) {
+				return hljs.highlightAuto( lang, code ).value;
+			}
+		});
+	}
+
+	var DEFAULT_SLIDE_SEPARATOR = '^\r?\n---\r?\n$',
+		DEFAULT_NOTES_SEPARATOR = 'note:',
+		DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '\\\.element\\\s*?(.+?)$',
+		DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR = '\\\.slide:\\\s*?(\\\S.+?)$';
+
+	var SCRIPT_END_PLACEHOLDER = '__SCRIPT_END__';
+
+
+	/**
+	 * Retrieves the markdown contents of a slide section
+	 * element. Normalizes leading tabs/whitespace.
+	 */
+	function getMarkdownFromSlide( section ) {
+
+		var template = section.querySelector( 'script' );
+
+		// strip leading whitespace so it isn't evaluated as code
+		var text = ( template || section ).textContent;
+
+		// restore script end tags
+		text = text.replace( new RegExp( SCRIPT_END_PLACEHOLDER, 'g' ), '</script>' );
+
+		var leadingWs = text.match( /^\n?(\s*)/ )[1].length,
+			leadingTabs = text.match( /^\n?(\t*)/ )[1].length;
+
+		if( leadingTabs > 0 ) {
+			text = text.replace( new RegExp('\\n?\\t{' + leadingTabs + '}','g'), '\n' );
+		}
+		else if( leadingWs > 1 ) {
+			text = text.replace( new RegExp('\\n? {' + leadingWs + '}', 'g'), '\n' );
+		}
+
+		return text;
+
+	}
+
+	/**
+	 * Given a markdown slide section element, this will
+	 * return all arguments that aren't related to markdown
+	 * parsing. Used to forward any other user-defined arguments
+	 * to the output markdown slide.
+	 */
+	function getForwardedAttributes( section ) {
+
+		var attributes = section.attributes;
+		var result = [];
+
+		for( var i = 0, len = attributes.length; i < len; i++ ) {
+			var name = attributes[i].name,
+				value = attributes[i].value;
+
+			// disregard attributes that are used for markdown loading/parsing
+			if( /data\-(markdown|separator|vertical|notes)/gi.test( name ) ) continue;
+
+			if( value ) {
+				result.push( name + '="' + value + '"' );
+			}
+			else {
+				result.push( name );
+			}
+		}
+
+		return result.join( ' ' );
+
+	}
+
+	/**
+	 * Inspects the given options and fills out default
+	 * values for what's not defined.
+	 */
+	function getSlidifyOptions( options ) {
+
+		options = options || {};
+		options.separator = options.separator || DEFAULT_SLIDE_SEPARATOR;
+		options.notesSeparator = options.notesSeparator || DEFAULT_NOTES_SEPARATOR;
+		options.attributes = options.attributes || '';
+
+		return options;
+
+	}
+
+	/**
+	 * Helper function for constructing a markdown slide.
+	 */
+	function createMarkdownSlide( content, options ) {
+
+		options = getSlidifyOptions( options );
+
+		var notesMatch = content.split( new RegExp( options.notesSeparator, 'mgi' ) );
+
+		if( notesMatch.length === 2 ) {
+			content = notesMatch[0] + '<aside class="notes" data-markdown>' + notesMatch[1].trim() + '</aside>';
+		}
+
+		// prevent script end tags in the content from interfering
+		// with parsing
+		content = content.replace( /<\/script>/g, SCRIPT_END_PLACEHOLDER );
+
+		return '<script type="text/template">' + content + '</script>';
+
+	}
+
+	/**
+	 * Parses a data string into multiple slides based
+	 * on the passed in separator arguments.
+	 */
+	function slidify( markdown, options ) {
+
+		options = getSlidifyOptions( options );
+
+		var separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '|' + options.verticalSeparator : '' ), 'mg' ),
+			horizontalSeparatorRegex = new RegExp( options.separator );
+
+		var matches,
+			lastIndex = 0,
+			isHorizontal,
+			wasHorizontal = true,
+			content,
+			sectionStack = [];
+
+		// iterate until all blocks between separators are stacked up
+		while( matches = separatorRegex.exec( markdown ) ) {
+			notes = null;
+
+			// determine direction (horizontal by default)
+			isHorizontal = horizontalSeparatorRegex.test( matches[0] );
+
+			if( !isHorizontal && wasHorizontal ) {
+				// create vertical stack
+				sectionStack.push( [] );
+			}
+
+			// pluck slide content from markdown input
+			content = markdown.substring( lastIndex, matches.index );
+
+			if( isHorizontal && wasHorizontal ) {
+				// add to horizontal stack
+				sectionStack.push( content );
+			}
+			else {
+				// add to vertical stack
+				sectionStack[sectionStack.length-1].push( content );
+			}
+
+			lastIndex = separatorRegex.lastIndex;
+			wasHorizontal = isHorizontal;
+		}
+
+		// add the remaining slide
+		( wasHorizontal ? sectionStack : sectionStack[sectionStack.length-1] ).push( markdown.substring( lastIndex ) );
+
+		var markdownSections = '';
+
+		// flatten the hierarchical stack, and insert <section data-markdown> tags
+		for( var i = 0, len = sectionStack.length; i < len; i++ ) {
+			// vertical
+			if( sectionStack[i] instanceof Array ) {
+				markdownSections += '<section '+ options.attributes +'>';
+
+				sectionStack[i].forEach( function( child ) {
+					markdownSections += '<section data-markdown>' +  createMarkdownSlide( child, options ) + '</section>';
+				} );
+
+				markdownSections += '</section>';
+			}
+			else {
+				markdownSections += '<section '+ options.attributes +' data-markdown>' + createMarkdownSlide( sectionStack[i], options ) + '</section>';
+			}
+		}
+
+		return markdownSections;
+
+	}
+
+	/**
+	 * Parses any current data-markdown slides, splits
+	 * multi-slide markdown into separate sections and
+	 * handles loading of external markdown.
+	 */
+	function processSlides() {
+
+		var sections = document.querySelectorAll( '[data-markdown]'),
+			section;
+
+		for( var i = 0, len = sections.length; i < len; i++ ) {
+
+			section = sections[i];
+
+			if( section.getAttribute( 'data-markdown' ).length ) {
+
+				var xhr = new XMLHttpRequest(),
+					url = section.getAttribute( 'data-markdown' );
+
+				datacharset = section.getAttribute( 'data-charset' );
+
+				// see https://developer.mozilla.org/en-US/docs/Web/API/element.getAttribute#Notes
+				if( datacharset != null && datacharset != '' ) {
+					xhr.overrideMimeType( 'text/html; charset=' + datacharset );
+				}
+
+				xhr.onreadystatechange = function() {
+					if( xhr.readyState === 4 ) {
+						// file protocol yields status code 0 (useful for local debug, mobile applications etc.)
+						if ( ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status === 0 ) {
+
+							section.outerHTML = slidify( xhr.responseText, {
+								separator: section.getAttribute( 'data-separator' ),
+								verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
+								notesSeparator: section.getAttribute( 'data-separator-notes' ),
+								attributes: getForwardedAttributes( section )
+							});
+
+						}
+						else {
+
+							section.outerHTML = '<section data-state="alert">' +
+								'ERROR: The attempt to fetch ' + url + ' failed with HTTP status ' + xhr.status + '.' +
+								'Check your browser\'s JavaScript console for more details.' +
+								'<p>Remember that you need to serve the presentation HTML from a HTTP server.</p>' +
+								'</section>';
+
+						}
+					}
+				};
+
+				xhr.open( 'GET', url, false );
+
+				try {
+					xhr.send();
+				}
+				catch ( e ) {
+					alert( 'Failed to get the Markdown file ' + url + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + e );
+				}
+
+			}
+			else if( section.getAttribute( 'data-separator' ) || section.getAttribute( 'data-separator-vertical' ) || section.getAttribute( 'data-separator-notes' ) ) {
+
+				section.outerHTML = slidify( getMarkdownFromSlide( section ), {
+					separator: section.getAttribute( 'data-separator' ),
+					verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
+					notesSeparator: section.getAttribute( 'data-separator-notes' ),
+					attributes: getForwardedAttributes( section )
+				});
+
+			}
+			else {
+				section.innerHTML = createMarkdownSlide( getMarkdownFromSlide( section ) );
+			}
+		}
+
+	}
+
+	/**
+	 * Check if a node value has the attributes pattern.
+	 * If yes, extract it and add that value as one or several attributes
+	 * the the terget element.
+	 *
+	 * You need Cache Killer on Chrome to see the effect on any FOM transformation
+	 * directly on refresh (F5)
+	 * http://stackoverflow.com/questions/5690269/disabling-chrome-cache-for-website-development/7000899#answer-11786277
+	 */
+	function addAttributeInElement( node, elementTarget, separator ) {
+
+		var mardownClassesInElementsRegex = new RegExp( separator, 'mg' );
+		var mardownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"=]+?)\"", 'mg' );
+		var nodeValue = node.nodeValue;
+		if( matches = mardownClassesInElementsRegex.exec( nodeValue ) ) {
+
+			var classes = matches[1];
+			nodeValue = nodeValue.substring( 0, matches.index ) + nodeValue.substring( mardownClassesInElementsRegex.lastIndex );
+			node.nodeValue = nodeValue;
+			while( matchesClass = mardownClassRegex.exec( classes ) ) {
+				elementTarget.setAttribute( matchesClass[1], matchesClass[2] );
+			}
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Add attributes to the parent element of a text node,
+	 * or the element of an attribute node.
+	 */
+	function addAttributes( section, element, previousElement, separatorElementAttributes, separatorSectionAttributes ) {
+
+		if ( element != null && element.childNodes != undefined && element.childNodes.length > 0 ) {
+			previousParentElement = element;
+			for( var i = 0; i < element.childNodes.length; i++ ) {
+				childElement = element.childNodes[i];
+				if ( i > 0 ) {
+					j = i - 1;
+					while ( j >= 0 ) {
+						aPreviousChildElement = element.childNodes[j];
+						if ( typeof aPreviousChildElement.setAttribute == 'function' && aPreviousChildElement.tagName != "BR" ) {
+							previousParentElement = aPreviousChildElement;
+							break;
+						}
+						j = j - 1;
+					}
+				}
+				parentSection = section;
+				if( childElement.nodeName ==  "section" ) {
+					parentSection = childElement ;
+					previousParentElement = childElement ;
+				}
+				if ( typeof childElement.setAttribute == 'function' || childElement.nodeType == Node.COMMENT_NODE ) {
+					addAttributes( parentSection, childElement, previousParentElement, separatorElementAttributes, separatorSectionAttributes );
+				}
+			}
+		}
+
+		if ( element.nodeType == Node.COMMENT_NODE ) {
+			if ( addAttributeInElement( element, previousElement, separatorElementAttributes ) == false ) {
+				addAttributeInElement( element, section, separatorSectionAttributes );
+			}
+		}
+	}
+
+	/**
+	 * Converts any current data-markdown slides in the
+	 * DOM to HTML.
+	 */
+	function convertSlides() {
+
+		var sections = document.querySelectorAll( '[data-markdown]');
+
+		for( var i = 0, len = sections.length; i < len; i++ ) {
+
+			var section = sections[i];
+
+			// Only parse the same slide once
+			if( !section.getAttribute( 'data-markdown-parsed' ) ) {
+
+				section.setAttribute( 'data-markdown-parsed', true )
+
+				var notes = section.querySelector( 'aside.notes' );
+				var markdown = getMarkdownFromSlide( section );
+
+				section.innerHTML = marked( markdown );
+				addAttributes( 	section, section, null, section.getAttribute( 'data-element-attributes' ) ||
+								section.parentNode.getAttribute( 'data-element-attributes' ) ||
+								DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR,
+								section.getAttribute( 'data-attributes' ) ||
+								section.parentNode.getAttribute( 'data-attributes' ) ||
+								DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR);
+
+				// If there were notes, we need to re-add them after
+				// having overwritten the section's HTML
+				if( notes ) {
+					section.appendChild( notes );
+				}
+
+			}
+
+		}
+
+	}
+
+	// API
+	return {
+
+		initialize: function() {
+			processSlides();
+			convertSlides();
+		},
+
+		// TODO: Do these belong in the API?
+		processSlides: processSlides,
+		convertSlides: convertSlides,
+		slidify: slidify
+
+	};
+
+}));
diff --git a/2017-08-11-DebConf17/plugin/markdown/marked.js b/2017-08-11-DebConf17/plugin/markdown/marked.js
new file mode 100644
index 0000000..70af29b
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/markdown/marked.js
@@ -0,0 +1,6 @@
+/**
+ * marked - a markdown parser
+ * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/chjj/marked
+ */
+(function(){function e(e){this.tokens=[],this.tokens.links={},this.options=e||a.defaults,this.rules=p.normal,this.options.gfm&&(this.rules=this.options.tables?p.tables:p.gfm)}function t(e,t){if(this.options=t||a.defaults,this.links=e,this.rules=u.normal,this.renderer=this.options.renderer||new n,this.renderer.options=this.options,!this.links)throw new Error("Tokens array requires a `links` property.");this.options.gfm?this.rules=this.options.breaks?u.breaks:u.gfm:this.options.pedantic&&( [...]
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/plugin/math/math.js b/2017-08-11-DebConf17/plugin/math/math.js
new file mode 100755
index 0000000..c0a691d
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/math/math.js
@@ -0,0 +1,67 @@
+/**
+ * A plugin which enables rendering of math equations inside
+ * of reveal.js slides. Essentially a thin wrapper for MathJax.
+ *
+ * @author Hakim El Hattab
+ */
+var RevealMath = window.RevealMath || (function(){
+
+	var options = Reveal.getConfig().math || {};
+	options.mathjax = options.mathjax || 'https://cdn.mathjax.org/mathjax/latest/MathJax.js';
+	options.config = options.config || 'TeX-AMS_HTML-full';
+
+	loadScript( options.mathjax + '?config=' + options.config, function() {
+
+		MathJax.Hub.Config({
+			messageStyle: 'none',
+			tex2jax: {
+				inlineMath: [['$','$'],['\\(','\\)']] ,
+				skipTags: ['script','noscript','style','textarea','pre']
+			},
+			skipStartupTypeset: true
+		});
+
+		// Typeset followed by an immediate reveal.js layout since
+		// the typesetting process could affect slide height
+		MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub ] );
+		MathJax.Hub.Queue( Reveal.layout );
+
+		// Reprocess equations in slides when they turn visible
+		Reveal.addEventListener( 'slidechanged', function( event ) {
+
+			MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, event.currentSlide ] );
+
+		} );
+
+	} );
+
+	function loadScript( url, callback ) {
+
+		var head = document.querySelector( 'head' );
+		var script = document.createElement( 'script' );
+		script.type = 'text/javascript';
+		script.src = url;
+
+		// Wrapper for callback to make sure it only fires once
+		var finish = function() {
+			if( typeof callback === 'function' ) {
+				callback.call();
+				callback = null;
+			}
+		}
+
+		script.onload = finish;
+
+		// IE
+		script.onreadystatechange = function() {
+			if ( this.readyState === 'loaded' ) {
+				finish();
+			}
+		}
+
+		// Normal browsers
+		head.appendChild( script );
+
+	}
+
+})();
diff --git a/2017-08-11-DebConf17/plugin/multiplex/client.js b/2017-08-11-DebConf17/plugin/multiplex/client.js
new file mode 100644
index 0000000..3ffd1e0
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/multiplex/client.js
@@ -0,0 +1,13 @@
+(function() {
+	var multiplex = Reveal.getConfig().multiplex;
+	var socketId = multiplex.id;
+	var socket = io.connect(multiplex.url);
+
+	socket.on(multiplex.id, function(data) {
+		// ignore data from sockets that aren't ours
+		if (data.socketId !== socketId) { return; }
+		if( window.location.host === 'localhost:1947' ) return;
+
+		Reveal.setState(data.state);
+	});
+}());
diff --git a/2017-08-11-DebConf17/plugin/multiplex/index.js b/2017-08-11-DebConf17/plugin/multiplex/index.js
new file mode 100644
index 0000000..40c1661
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/multiplex/index.js
@@ -0,0 +1,56 @@
+var http        = require('http');
+var express		= require('express');
+var fs			= require('fs');
+var io			= require('socket.io');
+var crypto		= require('crypto');
+
+var app       	= express();
+var staticDir 	= express.static;
+var server    	= http.createServer(app);
+
+io = io(server);
+
+var opts = {
+	port: process.env.PORT || 1948,
+	baseDir : __dirname + '/../../'
+};
+
+io.on( 'connection', function( socket ) {
+	socket.on('multiplex-statechanged', function(data) {
+		if (typeof data.secret == 'undefined' || data.secret == null || data.secret === '') return;
+		if (createHash(data.secret) === data.socketId) {
+			data.secret = null;
+			socket.broadcast.emit(data.socketId, data);
+		};
+	});
+});
+
+[ 'css', 'js', 'plugin', 'lib' ].forEach(function(dir) {
+	app.use('/' + dir, staticDir(opts.baseDir + dir));
+});
+
+app.get("/", function(req, res) {
+	res.writeHead(200, {'Content-Type': 'text/html'});
+	fs.createReadStream(opts.baseDir + '/index.html').pipe(res);
+});
+
+app.get("/token", function(req,res) {
+	var ts = new Date().getTime();
+	var rand = Math.floor(Math.random()*9999999);
+	var secret = ts.toString() + rand.toString();
+	res.send({secret: secret, socketId: createHash(secret)});
+});
+
+var createHash = function(secret) {
+	var cipher = crypto.createCipher('blowfish', secret);
+	return(cipher.final('hex'));
+};
+
+// Actually listen
+server.listen( opts.port || null );
+
+var brown = '\033[33m',
+	green = '\033[32m',
+	reset = '\033[0m';
+
+console.log( brown + "reveal.js:" + reset + " Multiplex running on port " + green + opts.port + reset );
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/plugin/multiplex/master.js b/2017-08-11-DebConf17/plugin/multiplex/master.js
new file mode 100644
index 0000000..4becad0
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/multiplex/master.js
@@ -0,0 +1,31 @@
+(function() {
+
+	// Don't emit events from inside of notes windows
+	if ( window.location.search.match( /receiver/gi ) ) { return; }
+
+	var multiplex = Reveal.getConfig().multiplex;
+
+	var socket = io.connect( multiplex.url );
+
+	function post() {
+
+		var messageData = {
+			state: Reveal.getState(),
+			secret: multiplex.secret,
+			socketId: multiplex.id
+		};
+
+		socket.emit( 'multiplex-statechanged', messageData );
+
+	};
+
+	// Monitor events that trigger a change in state
+	Reveal.addEventListener( 'slidechanged', post );
+	Reveal.addEventListener( 'fragmentshown', post );
+	Reveal.addEventListener( 'fragmenthidden', post );
+	Reveal.addEventListener( 'overviewhidden', post );
+	Reveal.addEventListener( 'overviewshown', post );
+	Reveal.addEventListener( 'paused', post );
+	Reveal.addEventListener( 'resumed', post );
+
+}());
\ No newline at end of file
diff --git a/2017-08-11-DebConf17/plugin/notes-server/client.js b/2017-08-11-DebConf17/plugin/notes-server/client.js
new file mode 100644
index 0000000..00b277b
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/notes-server/client.js
@@ -0,0 +1,65 @@
+(function() {
+
+	// don't emit events from inside the previews themselves
+	if( window.location.search.match( /receiver/gi ) ) { return; }
+
+	var socket = io.connect( window.location.origin ),
+		socketId = Math.random().toString().slice( 2 );
+
+	console.log( 'View slide notes at ' + window.location.origin + '/notes/' + socketId );
+
+	window.open( window.location.origin + '/notes/' + socketId, 'notes-' + socketId );
+
+	/**
+	 * Posts the current slide data to the notes window
+	 */
+	function post() {
+
+		var slideElement = Reveal.getCurrentSlide(),
+			notesElement = slideElement.querySelector( 'aside.notes' );
+
+		var messageData = {
+			notes: '',
+			markdown: false,
+			socketId: socketId,
+			state: Reveal.getState()
+		};
+
+		// Look for notes defined in a slide attribute
+		if( slideElement.hasAttribute( 'data-notes' ) ) {
+			messageData.notes = slideElement.getAttribute( 'data-notes' );
+		}
+
+		// Look for notes defined in an aside element
+		if( notesElement ) {
+			messageData.notes = notesElement.innerHTML;
+			messageData.markdown = typeof notesElement.getAttribute( 'data-markdown' ) === 'string';
+		}
+
+		socket.emit( 'statechanged', messageData );
+
+	}
+
+	// When a new notes window connects, post our current state
+	socket.on( 'new-subscriber', function( data ) {
+		post();
+	} );
+
+	// When the state changes from inside of the speaker view
+	socket.on( 'statechanged-speaker', function( data ) {
+		Reveal.setState( data.state );
+	} );
+
+	// Monitor events that trigger a change in state
+	Reveal.addEventListener( 'slidechanged', post );
+	Reveal.addEventListener( 'fragmentshown', post );
+	Reveal.addEventListener( 'fragmenthidden', post );
+	Reveal.addEventListener( 'overviewhidden', post );
+	Reveal.addEventListener( 'overviewshown', post );
+	Reveal.addEventListener( 'paused', post );
+	Reveal.addEventListener( 'resumed', post );
+
+	// Post the initial state
+	post();
+
+}());
diff --git a/2017-08-11-DebConf17/plugin/notes-server/index.js b/2017-08-11-DebConf17/plugin/notes-server/index.js
new file mode 100644
index 0000000..683f064
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/notes-server/index.js
@@ -0,0 +1,68 @@
+var http      = require('http');
+var express   = require('express');
+var fs        = require('fs');
+var io        = require('socket.io');
+var _         = require('underscore');
+var Mustache  = require('mustache');
+
+var app       = express();
+var staticDir = express.static;
+var server    = http.createServer(app);
+
+io = io(server);
+
+var opts = {
+	port :      1947,
+	baseDir :   __dirname + '/../../'
+};
+
+io.on( 'connection', function( socket ) {
+
+	socket.on( 'new-subscriber', function( data ) {
+		socket.broadcast.emit( 'new-subscriber', data );
+	});
+
+	socket.on( 'statechanged', function( data ) {
+		socket.broadcast.emit( 'statechanged', data );
+	});
+
+	socket.on( 'statechanged-speaker', function( data ) {
+		socket.broadcast.emit( 'statechanged-speaker', data );
+	});
+
+});
+
+[ 'css', 'js', 'images', 'plugin', 'lib' ].forEach( function( dir ) {
+	app.use( '/' + dir, staticDir( opts.baseDir + dir ) );
+});
+
+app.get('/', function( req, res ) {
+
+	res.writeHead( 200, { 'Content-Type': 'text/html' } );
+	fs.createReadStream( opts.baseDir + '/index.html' ).pipe( res );
+
+});
+
+app.get( '/notes/:socketId', function( req, res ) {
+
+	fs.readFile( opts.baseDir + 'plugin/notes-server/notes.html', function( err, data ) {
+		res.send( Mustache.to_html( data.toString(), {
+			socketId : req.params.socketId
+		}));
+	});
+
+});
+
+// Actually listen
+server.listen( opts.port || null );
+
+var brown = '\033[33m',
+	green = '\033[32m',
+	reset = '\033[0m';
+
+var slidesLocation = 'http://localhost' + ( opts.port ? ( ':' + opts.port ) : '' );
+
+console.log( brown + 'reveal.js - Speaker Notes' + reset );
+console.log( '1. Open the slides at ' + green + slidesLocation + reset );
+console.log( '2. Click on the link your JS console to go to the notes page' );
+console.log( '3. Advance through your slides and your notes will advance automatically' );
diff --git a/2017-08-11-DebConf17/plugin/notes-server/notes.html b/2017-08-11-DebConf17/plugin/notes-server/notes.html
new file mode 100644
index 0000000..ad8c719
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/notes-server/notes.html
@@ -0,0 +1,407 @@
+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Notes</title>
+
+		<style>
+			body {
+				font-family: Helvetica;
+			}
+
+			#current-slide,
+			#upcoming-slide,
+			#speaker-controls {
+				padding: 6px;
+				box-sizing: border-box;
+				-moz-box-sizing: border-box;
+			}
+
+			#current-slide iframe,
+			#upcoming-slide iframe {
+				width: 100%;
+				height: 100%;
+				border: 1px solid #ddd;
+			}
+
+			#current-slide .label,
+			#upcoming-slide .label {
+				position: absolute;
+				top: 10px;
+				left: 10px;
+				font-weight: bold;
+				font-size: 14px;
+				z-index: 2;
+				color: rgba( 255, 255, 255, 0.9 );
+			}
+
+			#current-slide {
+				position: absolute;
+				width: 65%;
+				height: 100%;
+				top: 0;
+				left: 0;
+				padding-right: 0;
+			}
+
+			#upcoming-slide {
+				position: absolute;
+				width: 35%;
+				height: 40%;
+				right: 0;
+				top: 0;
+			}
+
+			#speaker-controls {
+				position: absolute;
+				top: 40%;
+				right: 0;
+				width: 35%;
+				height: 60%;
+
+				font-size: 18px;
+			}
+
+				.speaker-controls-time.hidden,
+				.speaker-controls-notes.hidden {
+					display: none;
+				}
+
+				.speaker-controls-time .label,
+				.speaker-controls-notes .label {
+					text-transform: uppercase;
+					font-weight: normal;
+					font-size: 0.66em;
+					color: #666;
+					margin: 0;
+				}
+
+				.speaker-controls-time {
+					border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
+					margin-bottom: 10px;
+					padding: 10px 16px;
+					padding-bottom: 20px;
+					cursor: pointer;
+				}
+
+				.speaker-controls-time .reset-button {
+					opacity: 0;
+					float: right;
+					color: #666;
+					text-decoration: none;
+				}
+				.speaker-controls-time:hover .reset-button {
+					opacity: 1;
+				}
+
+				.speaker-controls-time .timer,
+				.speaker-controls-time .clock {
+					width: 50%;
+					font-size: 1.9em;
+				}
+
+				.speaker-controls-time .timer {
+					float: left;
+				}
+
+				.speaker-controls-time .clock {
+					float: right;
+					text-align: right;
+				}
+
+				.speaker-controls-time span.mute {
+					color: #bbb;
+				}
+
+				.speaker-controls-notes {
+					padding: 10px 16px;
+				}
+
+				.speaker-controls-notes .value {
+					margin-top: 5px;
+					line-height: 1.4;
+					font-size: 1.2em;
+				}
+
+			.clear {
+				clear: both;
+			}
+
+			@media screen and (max-width: 1080px) {
+				#speaker-controls {
+					font-size: 16px;
+				}
+			}
+
+			@media screen and (max-width: 900px) {
+				#speaker-controls {
+					font-size: 14px;
+				}
+			}
+
+			@media screen and (max-width: 800px) {
+				#speaker-controls {
+					font-size: 12px;
+				}
+			}
+
+		</style>
+	</head>
+
+	<body>
+
+		<div id="current-slide"></div>
+		<div id="upcoming-slide"><span class="label">UPCOMING:</span></div>
+		<div id="speaker-controls">
+			<div class="speaker-controls-time">
+				<h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
+				<div class="clock">
+					<span class="clock-value">0:00 AM</span>
+				</div>
+				<div class="timer">
+					<span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
+				</div>
+				<div class="clear"></div>
+			</div>
+
+			<div class="speaker-controls-notes hidden">
+				<h4 class="label">Notes</h4>
+				<div class="value"></div>
+			</div>
+		</div>
+
+		<script src="/socket.io/socket.io.js"></script>
+		<script src="/plugin/markdown/marked.js"></script>
+
+		<script>
+		(function() {
+
+			var notes,
+				notesValue,
+				currentState,
+				currentSlide,
+				upcomingSlide,
+				connected = false;
+
+			var socket = io.connect( window.location.origin ),
+				socketId = '{{socketId}}';
+
+			socket.on( 'statechanged', function( data ) {
+
+				// ignore data from sockets that aren't ours
+				if( data.socketId !== socketId ) { return; }
+
+				if( connected === false ) {
+					connected = true;
+
+					setupKeyboard();
+					setupNotes();
+					setupTimer();
+
+				}
+
+				handleStateMessage( data );
+
+			} );
+
+			// Load our presentation iframes
+			setupIframes();
+
+			// Once the iframes have loaded, emit a signal saying there's
+			// a new subscriber which will trigger a 'statechanged'
+			// message to be sent back
+			window.addEventListener( 'message', function( event ) {
+
+				var data = JSON.parse( event.data );
+
+				if( data && data.namespace === 'reveal' ) {
+					if( /ready/.test( data.eventName ) ) {
+						socket.emit( 'new-subscriber', { socketId: socketId } );
+					}
+				}
+
+				// Messages sent by reveal.js inside of the current slide preview
+				if( data && data.namespace === 'reveal' ) {
+					if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
+						socket.emit( 'statechanged-speaker', { state: data.state } );
+					}
+				}
+
+			} );
+
+			/**
+			 * Called when the main window sends an updated state.
+			 */
+			function handleStateMessage( data ) {
+
+				// Store the most recently set state to avoid circular loops
+				// applying the same state
+				currentState = JSON.stringify( data.state );
+
+				// No need for updating the notes in case of fragment changes
+				if ( data.notes ) {
+					notes.classList.remove( 'hidden' );
+					if( data.markdown ) {
+						notesValue.innerHTML = marked( data.notes );
+					}
+					else {
+						notesValue.innerHTML = data.notes;
+					}
+				}
+				else {
+					notes.classList.add( 'hidden' );
+				}
+
+				// Update the note slides
+				currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
+				upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
+				upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
+
+			}
+
+			// Limit to max one state update per X ms
+			handleStateMessage = debounce( handleStateMessage, 200 );
+
+			/**
+			 * Forward keyboard events to the current slide window.
+			 * This enables keyboard events to work even if focus
+			 * isn't set on the current slide iframe.
+			 */
+			function setupKeyboard() {
+
+				document.addEventListener( 'keydown', function( event ) {
+					currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
+				} );
+
+			}
+
+			/**
+			 * Creates the preview iframes.
+			 */
+			function setupIframes() {
+
+				var params = [
+					'receiver',
+					'progress=false',
+					'history=false',
+					'transition=none',
+					'backgroundTransition=none'
+				].join( '&' );
+
+				var currentURL = '/?' + params + '&postMessageEvents=true';
+				var upcomingURL = '/?' + params + '&controls=false';
+
+				currentSlide = document.createElement( 'iframe' );
+				currentSlide.setAttribute( 'width', 1280 );
+				currentSlide.setAttribute( 'height', 1024 );
+				currentSlide.setAttribute( 'src', currentURL );
+				document.querySelector( '#current-slide' ).appendChild( currentSlide );
+
+				upcomingSlide = document.createElement( 'iframe' );
+				upcomingSlide.setAttribute( 'width', 640 );
+				upcomingSlide.setAttribute( 'height', 512 );
+				upcomingSlide.setAttribute( 'src', upcomingURL );
+				document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
+
+			}
+
+			/**
+			 * Setup the notes UI.
+			 */
+			function setupNotes() {
+
+				notes = document.querySelector( '.speaker-controls-notes' );
+				notesValue = document.querySelector( '.speaker-controls-notes .value' );
+
+			}
+
+			/**
+			 * Create the timer and clock and start updating them
+			 * at an interval.
+			 */
+			function setupTimer() {
+
+				var start = new Date(),
+					timeEl = document.querySelector( '.speaker-controls-time' ),
+					clockEl = timeEl.querySelector( '.clock-value' ),
+					hoursEl = timeEl.querySelector( '.hours-value' ),
+					minutesEl = timeEl.querySelector( '.minutes-value' ),
+					secondsEl = timeEl.querySelector( '.seconds-value' );
+
+				function _updateTimer() {
+
+					var diff, hours, minutes, seconds,
+						now = new Date();
+
+					diff = now.getTime() - start.getTime();
+					hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
+					minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
+					seconds = Math.floor( ( diff / 1000 ) % 60 );
+
+					clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
+					hoursEl.innerHTML = zeroPadInteger( hours );
+					hoursEl.className = hours > 0 ? '' : 'mute';
+					minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
+					minutesEl.className = minutes > 0 ? '' : 'mute';
+					secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
+
+				}
+
+				// Update once directly
+				_updateTimer();
+
+				// Then update every second
+				setInterval( _updateTimer, 1000 );
+
+				timeEl.addEventListener( 'click', function() {
+					start = new Date();
+					_updateTimer();
+					return false;
+				} );
+
+			}
+
+			function zeroPadInteger( num ) {
+
+				var str = '00' + parseInt( num );
+				return str.substring( str.length - 2 );
+
+			}
+
+			/**
+			 * Limits the frequency at which a function can be called.
+			 */
+			function debounce( fn, ms ) {
+
+				var lastTime = 0,
+					timeout;
+
+				return function() {
+
+					var args = arguments;
+					var context = this;
+
+					clearTimeout( timeout );
+
+					var timeSinceLastCall = Date.now() - lastTime;
+					if( timeSinceLastCall > ms ) {
+						fn.apply( context, args );
+						lastTime = Date.now();
+					}
+					else {
+						timeout = setTimeout( function() {
+							fn.apply( context, args );
+							lastTime = Date.now();
+						}, ms - timeSinceLastCall );
+					}
+
+				}
+
+			}
+
+		})();
+		</script>
+
+	</body>
+</html>
diff --git a/2017-08-11-DebConf17/plugin/notes/notes.html b/2017-08-11-DebConf17/plugin/notes/notes.html
new file mode 100644
index 0000000..75f1b9b
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/notes/notes.html
@@ -0,0 +1,407 @@
+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Notes</title>
+
+		<style>
+			body {
+				font-family: Helvetica;
+			}
+
+			#current-slide,
+			#upcoming-slide,
+			#speaker-controls {
+				padding: 6px;
+				box-sizing: border-box;
+				-moz-box-sizing: border-box;
+			}
+
+			#current-slide iframe,
+			#upcoming-slide iframe {
+				width: 100%;
+				height: 100%;
+				border: 1px solid #ddd;
+			}
+
+			#current-slide .label,
+			#upcoming-slide .label {
+				position: absolute;
+				top: 10px;
+				left: 10px;
+				font-weight: bold;
+				font-size: 14px;
+				z-index: 2;
+				color: rgba( 255, 255, 255, 0.9 );
+			}
+
+			#current-slide {
+				position: absolute;
+				width: 65%;
+				height: 100%;
+				top: 0;
+				left: 0;
+				padding-right: 0;
+			}
+
+			#upcoming-slide {
+				position: absolute;
+				width: 35%;
+				height: 40%;
+				right: 0;
+				top: 0;
+			}
+
+			#speaker-controls {
+				position: absolute;
+				top: 40%;
+				right: 0;
+				width: 35%;
+				height: 60%;
+				overflow: auto;
+
+				font-size: 18px;
+			}
+
+				.speaker-controls-time.hidden,
+				.speaker-controls-notes.hidden {
+					display: none;
+				}
+
+				.speaker-controls-time .label,
+				.speaker-controls-notes .label {
+					text-transform: uppercase;
+					font-weight: normal;
+					font-size: 0.66em;
+					color: #666;
+					margin: 0;
+				}
+
+				.speaker-controls-time {
+					border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
+					margin-bottom: 10px;
+					padding: 10px 16px;
+					padding-bottom: 20px;
+					cursor: pointer;
+				}
+
+				.speaker-controls-time .reset-button {
+					opacity: 0;
+					float: right;
+					color: #666;
+					text-decoration: none;
+				}
+				.speaker-controls-time:hover .reset-button {
+					opacity: 1;
+				}
+
+				.speaker-controls-time .timer,
+				.speaker-controls-time .clock {
+					width: 50%;
+					font-size: 1.9em;
+				}
+
+				.speaker-controls-time .timer {
+					float: left;
+				}
+
+				.speaker-controls-time .clock {
+					float: right;
+					text-align: right;
+				}
+
+				.speaker-controls-time span.mute {
+					color: #bbb;
+				}
+
+				.speaker-controls-notes {
+					padding: 10px 16px;
+				}
+
+				.speaker-controls-notes .value {
+					margin-top: 5px;
+					line-height: 1.4;
+					font-size: 1.2em;
+				}
+
+			.clear {
+				clear: both;
+			}
+
+			@media screen and (max-width: 1080px) {
+				#speaker-controls {
+					font-size: 16px;
+				}
+			}
+
+			@media screen and (max-width: 900px) {
+				#speaker-controls {
+					font-size: 14px;
+				}
+			}
+
+			@media screen and (max-width: 800px) {
+				#speaker-controls {
+					font-size: 12px;
+				}
+			}
+
+		</style>
+	</head>
+
+	<body>
+
+		<div id="current-slide"></div>
+		<div id="upcoming-slide"><span class="label">UPCOMING:</span></div>
+		<div id="speaker-controls">
+			<div class="speaker-controls-time">
+				<h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
+				<div class="clock">
+					<span class="clock-value">0:00 AM</span>
+				</div>
+				<div class="timer">
+					<span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
+				</div>
+				<div class="clear"></div>
+			</div>
+
+			<div class="speaker-controls-notes hidden">
+				<h4 class="label">Notes</h4>
+				<div class="value"></div>
+			</div>
+		</div>
+
+		<script src="../../plugin/markdown/marked.js"></script>
+		<script>
+
+			(function() {
+
+				var notes,
+					notesValue,
+					currentState,
+					currentSlide,
+					upcomingSlide,
+					connected = false;
+
+				window.addEventListener( 'message', function( event ) {
+
+					var data = JSON.parse( event.data );
+
+					// Messages sent by the notes plugin inside of the main window
+					if( data && data.namespace === 'reveal-notes' ) {
+						if( data.type === 'connect' ) {
+							handleConnectMessage( data );
+						}
+						else if( data.type === 'state' ) {
+							handleStateMessage( data );
+						}
+					}
+					// Messages sent by the reveal.js inside of the current slide preview
+					else if( data && data.namespace === 'reveal' ) {
+						if( /ready/.test( data.eventName ) ) {
+							// Send a message back to notify that the handshake is complete
+							window.opener.postMessage( JSON.stringify({ namespace: 'reveal-notes', type: 'connected'} ), '*' );
+						}
+						else if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
+							window.opener.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ]} ), '*' );
+						}
+					}
+
+				} );
+
+				/**
+				 * Called when the main window is trying to establish a
+				 * connection.
+				 */
+				function handleConnectMessage( data ) {
+
+					if( connected === false ) {
+						connected = true;
+
+						setupIframes( data );
+						setupKeyboard();
+						setupNotes();
+						setupTimer();
+					}
+
+				}
+
+				/**
+				 * Called when the main window sends an updated state.
+				 */
+				function handleStateMessage( data ) {
+
+					// Store the most recently set state to avoid circular loops
+					// applying the same state
+					currentState = JSON.stringify( data.state );
+
+					// No need for updating the notes in case of fragment changes
+					if ( data.notes ) {
+						notes.classList.remove( 'hidden' );
+						notesValue.style.whiteSpace = data.whitespace;
+						if( data.markdown ) {
+							notesValue.innerHTML = marked( data.notes );
+						}
+						else {
+							notesValue.innerHTML = data.notes;
+						}
+					}
+					else {
+						notes.classList.add( 'hidden' );
+					}
+
+					// Update the note slides
+					currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
+					upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
+					upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
+
+				}
+
+				// Limit to max one state update per X ms
+				handleStateMessage = debounce( handleStateMessage, 200 );
+
+				/**
+				 * Forward keyboard events to the current slide window.
+				 * This enables keyboard events to work even if focus
+				 * isn't set on the current slide iframe.
+				 */
+				function setupKeyboard() {
+
+					document.addEventListener( 'keydown', function( event ) {
+						currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
+					} );
+
+				}
+
+				/**
+				 * Creates the preview iframes.
+				 */
+				function setupIframes( data ) {
+
+					var params = [
+						'receiver',
+						'progress=false',
+						'history=false',
+						'transition=none',
+						'autoSlide=0',
+						'backgroundTransition=none'
+					].join( '&' );
+
+					var hash = '#/' + data.state.indexh + '/' + data.state.indexv;
+					var currentURL = data.url + '?' + params + '&postMessageEvents=true' + hash;
+					var upcomingURL = data.url + '?' + params + '&controls=false' + hash;
+
+					currentSlide = document.createElement( 'iframe' );
+					currentSlide.setAttribute( 'width', 1280 );
+					currentSlide.setAttribute( 'height', 1024 );
+					currentSlide.setAttribute( 'src', currentURL );
+					document.querySelector( '#current-slide' ).appendChild( currentSlide );
+
+					upcomingSlide = document.createElement( 'iframe' );
+					upcomingSlide.setAttribute( 'width', 640 );
+					upcomingSlide.setAttribute( 'height', 512 );
+					upcomingSlide.setAttribute( 'src', upcomingURL );
+					document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
+
+				}
+
+				/**
+				 * Setup the notes UI.
+				 */
+				function setupNotes() {
+
+					notes = document.querySelector( '.speaker-controls-notes' );
+					notesValue = document.querySelector( '.speaker-controls-notes .value' );
+
+				}
+
+				/**
+				 * Create the timer and clock and start updating them
+				 * at an interval.
+				 */
+				function setupTimer() {
+
+					var start = new Date(),
+						timeEl = document.querySelector( '.speaker-controls-time' ),
+						clockEl = timeEl.querySelector( '.clock-value' ),
+						hoursEl = timeEl.querySelector( '.hours-value' ),
+						minutesEl = timeEl.querySelector( '.minutes-value' ),
+						secondsEl = timeEl.querySelector( '.seconds-value' );
+
+					function _updateTimer() {
+
+						var diff, hours, minutes, seconds,
+							now = new Date();
+
+						diff = now.getTime() - start.getTime();
+						hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
+						minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
+						seconds = Math.floor( ( diff / 1000 ) % 60 );
+
+						clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
+						hoursEl.innerHTML = zeroPadInteger( hours );
+						hoursEl.className = hours > 0 ? '' : 'mute';
+						minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
+						minutesEl.className = minutes > 0 ? '' : 'mute';
+						secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
+
+					}
+
+					// Update once directly
+					_updateTimer();
+
+					// Then update every second
+					setInterval( _updateTimer, 1000 );
+
+					timeEl.addEventListener( 'click', function() {
+						start = new Date();
+						_updateTimer();
+						return false;
+					} );
+
+				}
+
+				function zeroPadInteger( num ) {
+
+					var str = '00' + parseInt( num );
+					return str.substring( str.length - 2 );
+
+				}
+
+				/**
+				 * Limits the frequency at which a function can be called.
+				 */
+				function debounce( fn, ms ) {
+
+					var lastTime = 0,
+						timeout;
+
+					return function() {
+
+						var args = arguments;
+						var context = this;
+
+						clearTimeout( timeout );
+
+						var timeSinceLastCall = Date.now() - lastTime;
+						if( timeSinceLastCall > ms ) {
+							fn.apply( context, args );
+							lastTime = Date.now();
+						}
+						else {
+							timeout = setTimeout( function() {
+								fn.apply( context, args );
+								lastTime = Date.now();
+							}, ms - timeSinceLastCall );
+						}
+
+					}
+
+				}
+
+			})();
+
+		</script>
+	</body>
+</html>
diff --git a/2017-08-11-DebConf17/plugin/notes/notes.js b/2017-08-11-DebConf17/plugin/notes/notes.js
new file mode 100644
index 0000000..202e73b
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/notes/notes.js
@@ -0,0 +1,127 @@
+/**
+ * Handles opening of and synchronization with the reveal.js
+ * notes window.
+ *
+ * Handshake process:
+ * 1. This window posts 'connect' to notes window
+ *    - Includes URL of presentation to show
+ * 2. Notes window responds with 'connected' when it is available
+ * 3. This window proceeds to send the current presentation state
+ *    to the notes window
+ */
+var RevealNotes = (function() {
+
+	function openNotes() {
+		var jsFileLocation = document.querySelector('script[src$="notes.js"]').src;  // this js file path
+		jsFileLocation = jsFileLocation.replace(/notes\.js(\?.*)?$/, '');   // the js folder path
+		var notesPopup = window.open( jsFileLocation + 'notes.html', 'reveal.js - Notes', 'width=1100,height=700' );
+
+		/**
+		 * Connect to the notes window through a postmessage handshake.
+		 * Using postmessage enables us to work in situations where the
+		 * origins differ, such as a presentation being opened from the
+		 * file system.
+		 */
+		function connect() {
+			// Keep trying to connect until we get a 'connected' message back
+			var connectInterval = setInterval( function() {
+				notesPopup.postMessage( JSON.stringify( {
+					namespace: 'reveal-notes',
+					type: 'connect',
+					url: window.location.protocol + '//' + window.location.host + window.location.pathname + window.location.search,
+					state: Reveal.getState()
+				} ), '*' );
+			}, 500 );
+
+			window.addEventListener( 'message', function( event ) {
+				var data = JSON.parse( event.data );
+				if( data && data.namespace === 'reveal-notes' && data.type === 'connected' ) {
+					clearInterval( connectInterval );
+					onConnected();
+				}
+			} );
+		}
+
+		/**
+		 * Posts the current slide data to the notes window
+		 */
+		function post() {
+
+			var slideElement = Reveal.getCurrentSlide(),
+				notesElement = slideElement.querySelector( 'aside.notes' );
+
+			var messageData = {
+				namespace: 'reveal-notes',
+				type: 'state',
+				notes: '',
+				markdown: false,
+				whitespace: 'normal',
+				state: Reveal.getState()
+			};
+
+			// Look for notes defined in a slide attribute
+			if( slideElement.hasAttribute( 'data-notes' ) ) {
+				messageData.notes = slideElement.getAttribute( 'data-notes' );
+				messageData.whitespace = 'pre-wrap';
+			}
+
+			// Look for notes defined in an aside element
+			if( notesElement ) {
+				messageData.notes = notesElement.innerHTML;
+				messageData.markdown = typeof notesElement.getAttribute( 'data-markdown' ) === 'string';
+			}
+
+			notesPopup.postMessage( JSON.stringify( messageData ), '*' );
+
+		}
+
+		/**
+		 * Called once we have established a connection to the notes
+		 * window.
+		 */
+		function onConnected() {
+
+			// Monitor events that trigger a change in state
+			Reveal.addEventListener( 'slidechanged', post );
+			Reveal.addEventListener( 'fragmentshown', post );
+			Reveal.addEventListener( 'fragmenthidden', post );
+			Reveal.addEventListener( 'overviewhidden', post );
+			Reveal.addEventListener( 'overviewshown', post );
+			Reveal.addEventListener( 'paused', post );
+			Reveal.addEventListener( 'resumed', post );
+
+			// Post the initial state
+			post();
+
+		}
+
+		connect();
+	}
+
+	if( !/receiver/i.test( window.location.search ) ) {
+
+		// If the there's a 'notes' query set, open directly
+		if( window.location.search.match( /(\?|\&)notes/gi ) !== null ) {
+			openNotes();
+		}
+
+		// Open the notes when the 's' key is hit
+		document.addEventListener( 'keydown', function( event ) {
+			// Disregard the event if the target is editable or a
+			// modifier is present
+			if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
+
+			// Disregard the event if keyboard is disabled
+			if ( Reveal.getConfig().keyboard === false ) return;
+
+			if( event.keyCode === 83 ) {
+				event.preventDefault();
+				openNotes();
+			}
+		}, false );
+
+	}
+
+	return { open: openNotes };
+
+})();
diff --git a/2017-08-11-DebConf17/plugin/print-pdf/print-pdf.js b/2017-08-11-DebConf17/plugin/print-pdf/print-pdf.js
new file mode 100644
index 0000000..38a698d
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/print-pdf/print-pdf.js
@@ -0,0 +1,48 @@
+/**
+ * phantomjs script for printing presentations to PDF.
+ *
+ * Example:
+ * phantomjs print-pdf.js "http://lab.hakim.se/reveal-js?print-pdf" reveal-demo.pdf
+ *
+ * By Manuel Bieh (https://github.com/manuelbieh)
+ */
+
+// html2pdf.js
+var page = new WebPage();
+var system = require( 'system' );
+
+var slideWidth = system.args[3] ? system.args[3].split( 'x' )[0] : 960;
+var slideHeight = system.args[3] ? system.args[3].split( 'x' )[1] : 700;
+
+page.viewportSize = {
+	width: slideWidth,
+	height: slideHeight
+};
+
+// TODO
+// Something is wrong with these config values. An input
+// paper width of 1920px actually results in a 756px wide
+// PDF.
+page.paperSize = {
+	width: Math.round( slideWidth * 2 ),
+	height: Math.round( slideHeight * 2 ),
+	border: 0
+};
+
+var inputFile = system.args[1] || 'index.html?print-pdf';
+var outputFile = system.args[2] || 'slides.pdf';
+
+if( outputFile.match( /\.pdf$/gi ) === null ) {
+	outputFile += '.pdf';
+}
+
+console.log( 'Printing PDF (Paper size: '+ page.paperSize.width + 'x' + page.paperSize.height +')' );
+
+page.open( inputFile, function( status ) {
+	window.setTimeout( function() {
+		console.log( 'Printed successfully' );
+		page.render( outputFile );
+		phantom.exit();
+	}, 1000 );
+} );
+
diff --git a/2017-08-11-DebConf17/plugin/search/search.js b/2017-08-11-DebConf17/plugin/search/search.js
new file mode 100644
index 0000000..ae6582e
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/search/search.js
@@ -0,0 +1,196 @@
+/*
+ * Handles finding a text string anywhere in the slides and showing the next occurrence to the user
+ * by navigatating to that slide and highlighting it.
+ *
+ * By Jon Snyder <snyder.jon at gmail.com>, February 2013
+ */
+
+var RevealSearch = (function() {
+
+	var matchedSlides;
+	var currentMatchedIndex;
+	var searchboxDirty;
+	var myHilitor;
+
+// Original JavaScript code by Chirp Internet: www.chirp.com.au
+// Please acknowledge use of this code by including this header.
+// 2/2013 jon: modified regex to display any match, not restricted to word boundaries.
+
+function Hilitor(id, tag)
+{
+
+  var targetNode = document.getElementById(id) || document.body;
+  var hiliteTag = tag || "EM";
+  var skipTags = new RegExp("^(?:" + hiliteTag + "|SCRIPT|FORM|SPAN)$");
+  var colors = ["#ff6", "#a0ffff", "#9f9", "#f99", "#f6f"];
+  var wordColor = [];
+  var colorIdx = 0;
+  var matchRegex = "";
+  var matchingSlides = [];
+
+  this.setRegex = function(input)
+  {
+    input = input.replace(/^[^\w]+|[^\w]+$/g, "").replace(/[^\w'-]+/g, "|");
+    matchRegex = new RegExp("(" + input + ")","i");
+  }
+
+  this.getRegex = function()
+  {
+    return matchRegex.toString().replace(/^\/\\b\(|\)\\b\/i$/g, "").replace(/\|/g, " ");
+  }
+
+  // recursively apply word highlighting
+  this.hiliteWords = function(node)
+  {
+    if(node == undefined || !node) return;
+    if(!matchRegex) return;
+    if(skipTags.test(node.nodeName)) return;
+
+    if(node.hasChildNodes()) {
+      for(var i=0; i < node.childNodes.length; i++)
+        this.hiliteWords(node.childNodes[i]);
+    }
+    if(node.nodeType == 3) { // NODE_TEXT
+      if((nv = node.nodeValue) && (regs = matchRegex.exec(nv))) {
+      	//find the slide's section element and save it in our list of matching slides
+      	var secnode = node.parentNode;
+      	while (secnode.nodeName != 'SECTION') {
+      		secnode = secnode.parentNode;
+      	}
+      	
+      	var slideIndex = Reveal.getIndices(secnode);
+      	var slidelen = matchingSlides.length;
+      	var alreadyAdded = false;
+      	for (var i=0; i < slidelen; i++) {
+      		if ( (matchingSlides[i].h === slideIndex.h) && (matchingSlides[i].v === slideIndex.v) ) {
+      			alreadyAdded = true;
+      		}
+      	}
+      	if (! alreadyAdded) {
+      		matchingSlides.push(slideIndex);
+      	}
+      	
+        if(!wordColor[regs[0].toLowerCase()]) {
+          wordColor[regs[0].toLowerCase()] = colors[colorIdx++ % colors.length];
+        }
+
+        var match = document.createElement(hiliteTag);
+        match.appendChild(document.createTextNode(regs[0]));
+        match.style.backgroundColor = wordColor[regs[0].toLowerCase()];
+        match.style.fontStyle = "inherit";
+        match.style.color = "#000";
+
+        var after = node.splitText(regs.index);
+        after.nodeValue = after.nodeValue.substring(regs[0].length);
+        node.parentNode.insertBefore(match, after);
+      }
+    }
+  };
+
+  // remove highlighting
+  this.remove = function()
+  {
+    var arr = document.getElementsByTagName(hiliteTag);
+    while(arr.length && (el = arr[0])) {
+      el.parentNode.replaceChild(el.firstChild, el);
+    }
+  };
+
+  // start highlighting at target node
+  this.apply = function(input)
+  {
+    if(input == undefined || !input) return;
+    this.remove();
+    this.setRegex(input);
+    this.hiliteWords(targetNode);
+    return matchingSlides;
+  };
+
+}
+
+	function openSearch() {
+		//ensure the search term input dialog is visible and has focus:
+		var inputbox = document.getElementById("searchinput");
+		inputbox.style.display = "inline";
+		inputbox.focus();
+		inputbox.select();
+	}
+
+	function toggleSearch() {
+		var inputbox = document.getElementById("searchinput");
+		if (inputbox.style.display !== "inline") {
+			openSearch();
+		}
+		else {
+			inputbox.style.display = "none";
+			myHilitor.remove();
+		}
+	}
+
+	function doSearch() {
+		//if there's been a change in the search term, perform a new search:
+		if (searchboxDirty) {
+			var searchstring = document.getElementById("searchinput").value;
+
+			//find the keyword amongst the slides
+			myHilitor = new Hilitor("slidecontent");
+			matchedSlides = myHilitor.apply(searchstring);
+			currentMatchedIndex = 0;
+		}
+
+		//navigate to the next slide that has the keyword, wrapping to the first if necessary
+		if (matchedSlides.length && (matchedSlides.length <= currentMatchedIndex)) {
+			currentMatchedIndex = 0;
+		}
+		if (matchedSlides.length > currentMatchedIndex) {
+			Reveal.slide(matchedSlides[currentMatchedIndex].h, matchedSlides[currentMatchedIndex].v);
+			currentMatchedIndex++;
+		}
+	}
+
+	var dom = {};
+	dom.wrapper = document.querySelector( '.reveal' );
+
+	if( !dom.wrapper.querySelector( '.searchbox' ) ) {
+			var searchElement = document.createElement( 'div' );
+			searchElement.id = "searchinputdiv";
+			searchElement.classList.add( 'searchdiv' );
+      searchElement.style.position = 'absolute';
+      searchElement.style.top = '10px';
+      searchElement.style.left = '10px';
+      //embedded base64 search icon Designed by Sketchdock - http://www.sketchdock.com/:
+			searchElement.innerHTML = '<span><input type="search" id="searchinput" class="searchinput" style="vertical-align: top;"/><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABGdBTUEAAK/INwWK6QAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJiSURBVHjatFZNaxNBGH5md+Mmu92NVdKDRipSAyqCghgQD4L4cRe86UUtAQ+eFCxoa4/25EXBFi8eBE+eRPoDhB6KgiiixdAPCEkx2pjvTXadd9yNsflwuyUDD/O+u8PzzDPvzOwyx3EwyCZhwG3gAkp7MnpjgbopjsltcD4gjuXZZKeAR348MYLYTm3LzOs/y3j3JTfZxgXWXmTuwPHIc4Vm [...]
+			dom.wrapper.appendChild( searchElement );
+	}
+
+	document.getElementById("searchbutton").addEventListener( 'click', function(event) {
+		doSearch();
+	}, false );
+
+	document.getElementById("searchinput").addEventListener( 'keyup', function( event ) {
+		switch (event.keyCode) {
+			case 13:
+				event.preventDefault();
+				doSearch();
+				searchboxDirty = false;
+				break;
+			default:
+				searchboxDirty = true;
+		}
+	}, false );
+
+	// Open the search when the 's' key is hit (yes, this conflicts with the notes plugin, disabling for now)
+	/*
+	document.addEventListener( 'keydown', function( event ) {
+		// Disregard the event if the target is editable or a
+		// modifier is present
+		if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
+
+		if( event.keyCode === 83 ) {
+			event.preventDefault();
+			openSearch();
+		}
+	}, false );
+*/
+	return { open: openSearch };
+})();
diff --git a/2017-08-11-DebConf17/plugin/zoom-js/zoom.js b/2017-08-11-DebConf17/plugin/zoom-js/zoom.js
new file mode 100644
index 0000000..95093e0
--- /dev/null
+++ b/2017-08-11-DebConf17/plugin/zoom-js/zoom.js
@@ -0,0 +1,278 @@
+// Custom reveal.js integration
+(function(){
+	var isEnabled = true;
+
+	document.querySelector( '.reveal .slides' ).addEventListener( 'mousedown', function( event ) {
+		var modifier = ( Reveal.getConfig().zoomKey ? Reveal.getConfig().zoomKey : 'alt' ) + 'Key';
+
+		var zoomPadding = 20;
+		var revealScale = Reveal.getScale();
+
+		if( event[ modifier ] && isEnabled ) {
+			event.preventDefault();
+
+			var bounds = event.target.getBoundingClientRect();
+
+			zoom.to({
+				x: ( bounds.left * revealScale ) - zoomPadding,
+				y: ( bounds.top * revealScale ) - zoomPadding,
+				width: ( bounds.width * revealScale ) + ( zoomPadding * 2 ),
+				height: ( bounds.height * revealScale ) + ( zoomPadding * 2 ),
+				pan: false
+			});
+		}
+	} );
+
+	Reveal.addEventListener( 'overviewshown', function() { isEnabled = false; } );
+	Reveal.addEventListener( 'overviewhidden', function() { isEnabled = true; } );
+})();
+
+/*!
+ * zoom.js 0.3 (modified for use with reveal.js)
+ * http://lab.hakim.se/zoom-js
+ * MIT licensed
+ *
+ * Copyright (C) 2011-2014 Hakim El Hattab, http://hakim.se
+ */
+var zoom = (function(){
+
+	// The current zoom level (scale)
+	var level = 1;
+
+	// The current mouse position, used for panning
+	var mouseX = 0,
+		mouseY = 0;
+
+	// Timeout before pan is activated
+	var panEngageTimeout = -1,
+		panUpdateInterval = -1;
+
+	// Check for transform support so that we can fallback otherwise
+	var supportsTransforms = 	'WebkitTransform' in document.body.style ||
+								'MozTransform' in document.body.style ||
+								'msTransform' in document.body.style ||
+								'OTransform' in document.body.style ||
+								'transform' in document.body.style;
+
+	if( supportsTransforms ) {
+		// The easing that will be applied when we zoom in/out
+		document.body.style.transition = 'transform 0.8s ease';
+		document.body.style.OTransition = '-o-transform 0.8s ease';
+		document.body.style.msTransition = '-ms-transform 0.8s ease';
+		document.body.style.MozTransition = '-moz-transform 0.8s ease';
+		document.body.style.WebkitTransition = '-webkit-transform 0.8s ease';
+	}
+
+	// Zoom out if the user hits escape
+	document.addEventListener( 'keyup', function( event ) {
+		if( level !== 1 && event.keyCode === 27 ) {
+			zoom.out();
+		}
+	} );
+
+	// Monitor mouse movement for panning
+	document.addEventListener( 'mousemove', function( event ) {
+		if( level !== 1 ) {
+			mouseX = event.clientX;
+			mouseY = event.clientY;
+		}
+	} );
+
+	/**
+	 * Applies the CSS required to zoom in, prefers the use of CSS3
+	 * transforms but falls back on zoom for IE.
+	 *
+	 * @param {Object} rect
+	 * @param {Number} scale
+	 */
+	function magnify( rect, scale ) {
+
+		var scrollOffset = getScrollOffset();
+
+		// Ensure a width/height is set
+		rect.width = rect.width || 1;
+		rect.height = rect.height || 1;
+
+		// Center the rect within the zoomed viewport
+		rect.x -= ( window.innerWidth - ( rect.width * scale ) ) / 2;
+		rect.y -= ( window.innerHeight - ( rect.height * scale ) ) / 2;
+
+		if( supportsTransforms ) {
+			// Reset
+			if( scale === 1 ) {
+				document.body.style.transform = '';
+				document.body.style.OTransform = '';
+				document.body.style.msTransform = '';
+				document.body.style.MozTransform = '';
+				document.body.style.WebkitTransform = '';
+			}
+			// Scale
+			else {
+				var origin = scrollOffset.x +'px '+ scrollOffset.y +'px',
+					transform = 'translate('+ -rect.x +'px,'+ -rect.y +'px) scale('+ scale +')';
+
+				document.body.style.transformOrigin = origin;
+				document.body.style.OTransformOrigin = origin;
+				document.body.style.msTransformOrigin = origin;
+				document.body.style.MozTransformOrigin = origin;
+				document.body.style.WebkitTransformOrigin = origin;
+
+				document.body.style.transform = transform;
+				document.body.style.OTransform = transform;
+				document.body.style.msTransform = transform;
+				document.body.style.MozTransform = transform;
+				document.body.style.WebkitTransform = transform;
+			}
+		}
+		else {
+			// Reset
+			if( scale === 1 ) {
+				document.body.style.position = '';
+				document.body.style.left = '';
+				document.body.style.top = '';
+				document.body.style.width = '';
+				document.body.style.height = '';
+				document.body.style.zoom = '';
+			}
+			// Scale
+			else {
+				document.body.style.position = 'relative';
+				document.body.style.left = ( - ( scrollOffset.x + rect.x ) / scale ) + 'px';
+				document.body.style.top = ( - ( scrollOffset.y + rect.y ) / scale ) + 'px';
+				document.body.style.width = ( scale * 100 ) + '%';
+				document.body.style.height = ( scale * 100 ) + '%';
+				document.body.style.zoom = scale;
+			}
+		}
+
+		level = scale;
+
+		if( document.documentElement.classList ) {
+			if( level !== 1 ) {
+				document.documentElement.classList.add( 'zoomed' );
+			}
+			else {
+				document.documentElement.classList.remove( 'zoomed' );
+			}
+		}
+	}
+
+	/**
+	 * Pan the document when the mosue cursor approaches the edges
+	 * of the window.
+	 */
+	function pan() {
+		var range = 0.12,
+			rangeX = window.innerWidth * range,
+			rangeY = window.innerHeight * range,
+			scrollOffset = getScrollOffset();
+
+		// Up
+		if( mouseY < rangeY ) {
+			window.scroll( scrollOffset.x, scrollOffset.y - ( 1 - ( mouseY / rangeY ) ) * ( 14 / level ) );
+		}
+		// Down
+		else if( mouseY > window.innerHeight - rangeY ) {
+			window.scroll( scrollOffset.x, scrollOffset.y + ( 1 - ( window.innerHeight - mouseY ) / rangeY ) * ( 14 / level ) );
+		}
+
+		// Left
+		if( mouseX < rangeX ) {
+			window.scroll( scrollOffset.x - ( 1 - ( mouseX / rangeX ) ) * ( 14 / level ), scrollOffset.y );
+		}
+		// Right
+		else if( mouseX > window.innerWidth - rangeX ) {
+			window.scroll( scrollOffset.x + ( 1 - ( window.innerWidth - mouseX ) / rangeX ) * ( 14 / level ), scrollOffset.y );
+		}
+	}
+
+	function getScrollOffset() {
+		return {
+			x: window.scrollX !== undefined ? window.scrollX : window.pageXOffset,
+			y: window.scrollY !== undefined ? window.scrollY : window.pageYOffset
+		}
+	}
+
+	return {
+		/**
+		 * Zooms in on either a rectangle or HTML element.
+		 *
+		 * @param {Object} options
+		 *   - element: HTML element to zoom in on
+		 *   OR
+		 *   - x/y: coordinates in non-transformed space to zoom in on
+		 *   - width/height: the portion of the screen to zoom in on
+		 *   - scale: can be used instead of width/height to explicitly set scale
+		 */
+		to: function( options ) {
+
+			// Due to an implementation limitation we can't zoom in
+			// to another element without zooming out first
+			if( level !== 1 ) {
+				zoom.out();
+			}
+			else {
+				options.x = options.x || 0;
+				options.y = options.y || 0;
+
+				// If an element is set, that takes precedence
+				if( !!options.element ) {
+					// Space around the zoomed in element to leave on screen
+					var padding = 20;
+					var bounds = options.element.getBoundingClientRect();
+
+					options.x = bounds.left - padding;
+					options.y = bounds.top - padding;
+					options.width = bounds.width + ( padding * 2 );
+					options.height = bounds.height + ( padding * 2 );
+				}
+
+				// If width/height values are set, calculate scale from those values
+				if( options.width !== undefined && options.height !== undefined ) {
+					options.scale = Math.max( Math.min( window.innerWidth / options.width, window.innerHeight / options.height ), 1 );
+				}
+
+				if( options.scale > 1 ) {
+					options.x *= options.scale;
+					options.y *= options.scale;
+
+					magnify( options, options.scale );
+
+					if( options.pan !== false ) {
+
+						// Wait with engaging panning as it may conflict with the
+						// zoom transition
+						panEngageTimeout = setTimeout( function() {
+							panUpdateInterval = setInterval( pan, 1000 / 60 );
+						}, 800 );
+
+					}
+				}
+			}
+		},
+
+		/**
+		 * Resets the document zoom state to its default.
+		 */
+		out: function() {
+			clearTimeout( panEngageTimeout );
+			clearInterval( panUpdateInterval );
+
+			magnify( { x: 0, y: 0 }, 1 );
+
+			level = 1;
+		},
+
+		// Alias
+		magnify: function( options ) { this.to( options ) },
+		reset: function() { this.out() },
+
+		zoomLevel: function() {
+			return level;
+		}
+	}
+
+})();
+
+
+

-- 
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