merge conflicts w preview & backgrounds

README.md

@@ -5,7 +5,7 @@ A framework for easily creating beautiful presentations using HTML. [Check out t
 reveal.js comes with a broad range of features including [nested slides](https://github.com/hakimel/reveal.js#markup), [markdown contents](https://github.com/hakimel/reveal.js#markdown), [PDF export](https://github.com/hakimel/reveal.js#pdf-export), [speaker notes](https://github.com/hakimel/reveal.js#speaker-notes) and a [JavaScript API](https://github.com/hakimel/reveal.js#api). It's best viewed in a browser with support for CSS 3D transforms but [fallbacks](https://github.com/hakimel/reveal.js/wiki/Browser-Support) are available to make sure your presentation can still be viewed elsewhere.
 
 
-#### More reading::
+#### More reading:
 - [Installation](#installation): Step-by-step instructions for getting reveal.js running on your computer.
 - [Changelog](https://github.com/hakimel/reveal.js/wiki/Changelog): Up-to-date version history.
 - [Examples](https://github.com/hakimel/reveal.js/wiki/Example-Presentations): Presentations created with reveal.js, add your own!
@@ -106,6 +106,9 @@ Reveal.initialize({
 	// Transition speed
 	transitionSpeed: 'default', // default/fast/slow
 
+	// Transition style for full page backgrounds
+	backgroundTransition: 'default' // default/linear
+
 });
 ```
 
@@ -211,18 +214,6 @@ Reveal.getCurrentSlide();
 Reveal.getIndices(); // { h: 0, v: 0 } }
 ```
 
-### States
-
-If you set ``data-state="somestate"`` on a slide ``<section>``, "somestate" will be applied as a class on the document element when that slide is opened. This allows you to apply broad style changes to the page based on the active slide.
-
-Furthermore you can also listen to these changes in state via JavaScript:
-
-```javascript
-Reveal.addEventListener( 'somestate', function() {
-	// TODO: Sprinkle magic
-}, false );
-```
-
 ### Ready event
 
 The 'ready' event is fired when reveal.js has loaded all (synchronous) dependencies and is ready to start navigating.
@@ -245,6 +236,37 @@ Reveal.addEventListener( 'slidechanged', function( event ) {
 } );
 ```
 
+### States
+
+If you set ``data-state="somestate"`` on a slide ``<section>``, "somestate" will be applied as a class on the document element when that slide is opened. This allows you to apply broad style changes to the page based on the active slide.
+
+Furthermore you can also listen to these changes in state via JavaScript:
+
+```javascript
+Reveal.addEventListener( 'somestate', function() {
+	// TODO: Sprinkle magic
+}, false );
+```
+
+### Slide backgrounds
+
+Slides are contained withing a limited portion of the screen by default to allow them to fit any display and scale uniformly. You can apply full page background colors or images by applying a ```data-background``` attribute to your ```<section>``` elements. Below are a few examples.
+
+```html
+<section data-background="#ff0000">
+	<h2>All CSS color formats are supported, like rgba() or hsl().</h2>
+</section>
+<section data-background="http://example.com/image.png">
+	<h2>This slide will have a full-size background image.</h2>
+</section>
+<section data-background="http://example.com/image.png" data-background-size="100px" data-background-repeat="repeat">
+	<h2>This background image will be sized to 100px and repeated.</h2>
+</section>
+```
+
+Backgrounds transition using a fade animation by default. This can be changed to a linear sliding transition by passing ```backgroundTransition: 'linear'``` to the ```Reveal.initialize()``` call.
+
+
 ### Internal links
 
 It's easy to link between slides. The first example below targets the index of another slide whereas the second targets a slide with an ID attribute (```<section id="some-slide">```):
@@ -282,7 +304,7 @@ Note that this does not work with the page and cube transitions.
 
 
 ### Fragments
-Fragments are used to highlight individual elements on a slide. Every elmement with the class ```fragment``` will be stepped through before moving on to the next slide. Here's an example: http://lab.hakim.se/reveal-js/#/16
+Fragments are used to highlight individual elements on a slide. Every element with the class ```fragment``` will be stepped through before moving on to the next slide. Here's an example: http://lab.hakim.se/reveal-js/#/16
 
 The default fragment style is to start out invisible and fade in. This style can be changed by appending a different class to the fragment:
 
@@ -583,11 +605,11 @@ The **basic setup** is for authoring presentations only. The **full setup** give
 
 ### Basic setup
 
-The core of reveal.js is very easy to install. You'll simply need to download a copy of this repository and open the index.html file directly in your browser.g
+The core of reveal.js is very easy to install. You'll simply need to download a copy of this repository and open the index.html file directly in your browser.
 
 1. Download a copy of reveal.js from <https://github.com/hakimel/reveal.js/archive/master.zip>
 
-2. Unizp and replace the example contents in index.html with your own
+2. Unzip and replace the example contents in index.html with your own
 
 3. Open index.html in a browser to view it
 

css/print/pdf.css

@@ -17,8 +17,9 @@
 
 body {
 	font-size: 18pt;
-	width: auto;
+	width: 297mm;
-	height: auto;
+	height: 229mm;
+	margin: 0 auto !important;
 	border: 0;
 	padding: 0;
 	float: none !important;
@@ -88,10 +89,8 @@ ul, ol, div, p {
 
 	left: auto;
 	top: auto;
-	margin-left: auto;
+	margin: 0 !important;
-	margin-right: auto;
+	padding: 0 !important;
-	margin-top: auto;
-	padding: auto;
 
 	overflow: visible;
 	display: block;
@@ -113,18 +112,18 @@ ul, ol, div, p {
 	page-break-after: always !important;
 
 	visibility: visible !important;
-	position: static !important;
+	position: relative !important;
 	width: 100% !important;
-	height: auto !important;
+	height: 229mm !important;
-	min-height: initial !important;
+	min-height: 229mm !important;
 	display: block !important;
-	overflow: visible !important;
+	overflow: hidden !important;
 
 	left: 0 !important;
 	top: 0 !important;
-	margin-left: 0px !important;
+	margin: 0 !important;
-	margin-top: 50px !important;
+	padding: 2cm 1cm 0 1cm !important;
-	padding: 20px 0px !important;
+	box-sizing: border-box !important;
 
 	opacity: 1 !important;
 
@@ -139,9 +138,11 @@ ul, ol, div, p {
 	        transform: none !important;
 }
 .reveal section.stack {
-	margin: 0px !important;
+	margin: 0 !important;
-	padding: 0px !important;
+	padding: 0 !important;
 	page-break-after: avoid !important;
+	height: auto !important;
+	min-height: auto !important;
 }
 .reveal section .fragment {
 	opacity: 1 !important;
@@ -152,6 +153,17 @@ ul, ol, div, p {
 	    -ms-transform: none !important;
 	        transform: none !important;
 }
+.reveal section .slide-background {
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	z-index: 0;
+}
+.reveal section>* {
+	position: relative;
+	z-index: 1;
+}
 .reveal img {
 	box-shadow: none;
 }

css/reveal.css

@@ -1252,17 +1252,18 @@ body {
 	left: 0;
 }
 
-.no-transition {
+.reveal .no-transition,
-	-webkit-transition: none;
+.reveal .no-transition * {
-	   -moz-transition: none;
+	-webkit-transition: none !important;
-	    -ms-transition: none;
+	   -moz-transition: none !important;
-	     -o-transition: none;
+	    -ms-transition: none !important;
-	        transition: none;
+	     -o-transition: none !important;
+	        transition: none !important;
 }
 
 
 /*********************************************
- * BACKGROUND STATES
+ * BACKGROUND STATES [DEPRECATED]
  *********************************************/
 
 .reveal .state-background {
@@ -1306,6 +1307,104 @@ body {
 }
 
 
+/*********************************************
+ * 
+ *********************************************/
+
+.reveal>.backgrounds {
+	position: absolute;
+	width: 100%;
+	height: 100%;
+}
+	.reveal .slide-background {
+		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;
+
+		-webkit-transition: all 600ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+		   -moz-transition: all 600ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+		    -ms-transition: all 600ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+		     -o-transition: all 600ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+		        transition: all 600ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
+	}
+	.reveal .slide-background.present {
+		opacity: 1;
+		visibility: visible;
+	}
+
+	.print-pdf .reveal .slide-background {
+		opacity: 1 !important;
+		visibility: visible !important;
+	}
+
+/* Linear sliding transition style */
+.reveal[data-background-transition=linear]>.backgrounds .slide-background {
+	opacity: 1;
+
+	-webkit-backface-visibility: hidden;
+	   -moz-backface-visibility: hidden;
+	    -ms-backface-visibility: hidden;
+	        backface-visibility: hidden;
+
+	-webkit-transition-duration: 800ms;
+	   -moz-transition-duration: 800ms;
+	    -ms-transition-duration: 800ms;
+	     -o-transition-duration: 800ms;
+	        transition-duration: 800ms;
+}
+	.reveal[data-background-transition=linear]>.backgrounds .slide-background.past {
+		-webkit-transform: translate(-100%, 0);
+		   -moz-transform: translate(-100%, 0);
+		    -ms-transform: translate(-100%, 0);
+		     -o-transform: translate(-100%, 0);
+		        transform: translate(-100%, 0);
+	}
+	.reveal[data-background-transition=linear]>.backgrounds .slide-background.future {
+		-webkit-transform: translate(100%, 0);
+		   -moz-transform: translate(100%, 0);
+		    -ms-transform: translate(100%, 0);
+		     -o-transform: translate(100%, 0);
+		        transform: translate(100%, 0);
+	}
+
+	.reveal[data-background-transition=linear]>.backgrounds .slide-background>.slide-background.past {
+		-webkit-transform: translate(0, -100%);
+		   -moz-transform: translate(0, -100%);
+		    -ms-transform: translate(0, -100%);
+		     -o-transform: translate(0, -100%);
+		        transform: translate(0, -100%);
+	}
+	.reveal[data-background-transition=linear]>.backgrounds .slide-background>.slide-background.future {
+		-webkit-transform: translate(0, 100%);
+		   -moz-transform: translate(0, 100%);
+		    -ms-transform: translate(0, 100%);
+		     -o-transform: translate(0, 100%);
+		        transform: translate(0, 100%);
+	}
+
+
+/* Global transition speed settings */
+.reveal[data-transition-speed="fast"]>.backgrounds .slide-background {
+	-webkit-transition-duration: 400ms;
+	   -moz-transition-duration: 400ms;
+	    -ms-transition-duration: 400ms;
+	        transition-duration: 400ms;
+}
+.reveal[data-transition-speed="slow"]>.backgrounds .slide-background {
+	-webkit-transition-duration: 1200ms;
+	   -moz-transition-duration: 1200ms;
+	    -ms-transition-duration: 1200ms;
+	        transition-duration: 1200ms;
+}
+
+
 /*********************************************
  * RTL SUPPORT
  *********************************************/

index.html

@@ -183,29 +183,12 @@
 				</section>
 
 				<section>
-					<section data-state="alert">
+					<h2>Global State</h2>
-						<h2>Global State</h2>
+					<p>
-						<p>
+						Set <code>data-state="something"</code> on a slide and <code>"something"</code>
-							Set <code>data-state="something"</code> on a slide and <code>"something"</code>
+						will be added as a class to the document element when the slide is open. This lets you
-							will be added as a class to the document element when the slide is open. This lets you
+						apply broader style changes, like switching the background.
-							apply broader style changes, like switching the background.
+					</p>
-						</p>
-						<a href="#" class="image navigate-down">
-							<img width="178" height="238" src="https://s3.amazonaws.com/hakim-static/reveal-js/arrow.png" alt="Down arrow">
-						</a>
-					</section>
-					<section data-state="blackout">
-						<h2>"blackout"</h2>
-						<a href="#" class="image navigate-down">
-							<img width="178" height="238" src="https://s3.amazonaws.com/hakim-static/reveal-js/arrow.png" alt="Down arrow">
-						</a>
-					</section>
-					<section data-state="soothe">
-						<h2>"soothe"</h2>
-						<a href="#" class="image navigate-next">
-							<img width="178" height="238" src="https://s3.amazonaws.com/hakim-static/reveal-js/arrow.png" alt="Up arrow" style="-webkit-transform: rotate(-90deg);">
-						</a>
-					</section>
 				</section>
 
 				<section data-state="customevent">
@@ -220,6 +203,26 @@ Reveal.addEventListener( 'customevent', function() {
 					</code></pre>
 				</section>
 
+				<section>
+					<section data-background="#007777">
+						<h2>Slide Backgrounds</h2>
+						<p>
+							Set <code>data-background="#007777"</code> on a slide to change the full page background to the given color. All CSS color formats are supported.
+						</p>
+						<a href="#" class="image navigate-down">
+							<img width="178" height="238" src="https://s3.amazonaws.com/hakim-static/reveal-js/arrow.png" alt="Down arrow">
+						</a>
+					</section>
+					<section data-background="https://s3.amazonaws.com/hakim-static/reveal-js/arrow.png">
+						<h2>Image Backgrounds</h2>
+						<pre><code>&lt;section data-background="image.png"&gt;</code></pre>
+					</section>
+					<section data-background="https://s3.amazonaws.com/hakim-static/reveal-js/arrow.png" data-background-repeat="repeat" data-background-size="100px">
+						<h2>Repeated Image Backgrounds</h2>
+						<pre><code style="word-wrap: break-word;">&lt;section data-background="image.png" data-background-repeat="repeat" data-background-size="100px"&gt;</code></pre>
+					</section>
+				</section>
+
 				<section>
 					<h2>Clever Quotes</h2>
 					<p>

js/reveal.js

@@ -82,6 +82,9 @@ var Reveal = (function(){
 			// Transition speed
 			transitionSpeed: 'default', // default/fast/slow
 
+			// Transition style for full page slide backgrounds
+			backgroundTransition: 'default', // default/linear
+
 			// Script dependencies to load
 			dependencies: []
 		},
@@ -189,6 +192,13 @@ var Reveal = (function(){
 		dom.wrapper = document.querySelector( '.reveal' );
 		dom.slides = document.querySelector( '.reveal .slides' );
 
+		// Background element
+		if( !document.querySelector( '.reveal .backgrounds' ) ) {
+			dom.background = document.createElement( 'div' );
+			dom.background.classList.add( 'backgrounds' );
+			dom.wrapper.appendChild( dom.background );
+		}
+
 		// Progress bar
 		if( !dom.wrapper.querySelector( '.progress' ) ) {
 			var progressElement = document.createElement( 'div' );
@@ -208,11 +218,11 @@ var Reveal = (function(){
 			dom.wrapper.appendChild( controlsElement );
 		}
 
-		// Presentation background element
+		// State background element [DEPRECATED]
 		if( !dom.wrapper.querySelector( '.state-background' ) ) {
-			var backgroundElement = document.createElement( 'div' );
+			var stateBackgroundElement = document.createElement( 'div' );
-			backgroundElement.classList.add( 'state-background' );
+			stateBackgroundElement.classList.add( 'state-background' );
-			dom.wrapper.appendChild( backgroundElement );
+			dom.wrapper.appendChild( stateBackgroundElement );
 		}
 
 		// Overlay graphic which is displayed during the paused mode
@@ -240,6 +250,86 @@ var Reveal = (function(){
 
 	}
 
+	/**
+	 * 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() {
+
+		if( isPrintingPDF() ) {
+			document.body.classList.add( 'print-pdf' );
+		}
+
+		// Clear prior backgrounds
+		dom.background.innerHTML = '';
+		dom.background.classList.add( 'no-transition' );
+
+		// Helper method for creating a background element for the
+		// given slide
+		function _createBackground( slide, container ) {
+
+			var data = {
+				background: slide.getAttribute( 'data-background' ),
+				backgroundSize: slide.getAttribute( 'data-background-size' ),
+				backgroundColor: slide.getAttribute( 'data-background-color' ),
+				backgroundRepeat: slide.getAttribute( 'data-background-repeat' ),
+				backgroundPosition: slide.getAttribute( 'data-background-position' )
+			};
+
+			var element = document.createElement( 'div' );
+			element.className = 'slide-background';
+
+			if( data.background ) {
+				// Auto-wrap image urls in url(...)
+				if( /\.(png|jpg|jpeg|gif|bmp)$/gi.test( data.background ) ) {
+					element.style.backgroundImage = 'url('+ data.background +')';
+				}
+				else {
+					element.style.background = data.background;
+				}
+			}
+
+			// 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;
+
+			container.appendChild( element );
+
+			return element;
+
+		}
+
+		// Iterate over all horizontal slides
+		toArray( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( slideh ) {
+
+			var backgroundStack;
+
+			if( isPrintingPDF() ) {
+				backgroundStack = _createBackground( slideh, slideh );
+			}
+			else {
+				backgroundStack = _createBackground( slideh, dom.background );
+			}
+
+			// Iterate over all vertical slides
+			toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) {
+
+				if( isPrintingPDF() ) {
+					_createBackground( slidev, slidev );
+				}
+				else {
+					_createBackground( slidev, backgroundStack );
+				}
+
+			} );
+
+		} );
+
+	}
+
 	/**
 	 * Hides the address bar if we're on a mobile device.
 	 */
@@ -351,6 +441,7 @@ var Reveal = (function(){
 		dom.wrapper.classList.add( config.transition );
 
 		dom.wrapper.setAttribute( 'data-transition-speed', config.transitionSpeed );
+		dom.wrapper.setAttribute( 'data-background-transition', config.backgroundTransition );
 
 		if( dom.controls ) {
 			dom.controls.style.display = ( config.controls && dom.controls ) ? 'block' : 'none';
@@ -570,6 +661,15 @@ var Reveal = (function(){
 
 	}
 
+	/**
+	 * Checks if this instance is being used to print a PDF.
+	 */
+	function isPrintingPDF() {
+
+		return ( /print-pdf/gi ).test( window.location.search );
+
+	}
+
 	/**
 	 * Causes the address bar to hide on mobile devices,
 	 * more vertical space ftw.
@@ -770,7 +870,7 @@ var Reveal = (function(){
 	 */
 	function layout() {
 
-		if( dom.wrapper ) {
+		if( dom.wrapper && !isPrintingPDF() ) {
 
 			// Available space to scale within
 			var availableWidth = dom.wrapper.offsetWidth,
@@ -1262,7 +1362,8 @@ var Reveal = (function(){
 		}
 
 		// Dispatch an event if the slide changed
-		if( indexh !== indexhBefore || indexv !== indexvBefore ) {
+		var slideChanged = ( indexh !== indexhBefore || indexv !== indexvBefore );
+		if( slideChanged ) {
 			dispatchEvent( 'slidechanged', {
 				'indexh': indexh,
 				'indexv': indexv,
@@ -1299,11 +1400,14 @@ var Reveal = (function(){
 		}
 
 		// Handle embedded content
-		stopEmbeddedContent( previousSlide );
+		if( slideChanged ) {
-		startEmbeddedContent( currentSlide );
+			stopEmbeddedContent( previousSlide );
+			startEmbeddedContent( currentSlide );
+		}
 
 		updateControls();
 		updateProgress();
+		updateBackground();
 
 	}
 
@@ -1327,8 +1431,12 @@ var Reveal = (function(){
 		// Start auto-sliding if it's enabled
 		cueAutoSlide();
 
+		// Re-create the slide backgrounds
+		createBackgrounds();
+
 		updateControls();
 		updateProgress();
+		updateBackground();
 
 	}
 
@@ -1385,6 +1493,9 @@ var Reveal = (function(){
 				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', '' );
+
 				if( i < index ) {
 					// Any element previous to index is given the 'past' class
 					element.classList.add( reverse ? 'future' : 'past' );
@@ -1402,6 +1513,7 @@ var Reveal = (function(){
 
 			// Mark the current slide as present
 			slides[index].classList.add( 'present' );
+			slides[index].removeAttribute( 'hidden' );
 
 			// If this slide has a state associated with it, add it
 			// onto the current state of the deck
@@ -1533,6 +1645,37 @@ var Reveal = (function(){
 
 	}
 
+	/**
+	 * Updates the background elements to reflect the current 
+	 * slide.
+	 */
+	function updateBackground() {
+
+		// Update the classes of all backgrounds to match the 
+		// states of their slides (past/present/future)
+		toArray( dom.background.childNodes ).forEach( function( backgroundh, h ) {
+
+			// Reverse past/future classes when in RTL mode
+			var horizontalPast = config.rtl ? 'future' : 'past',
+				horizontalFuture = config.rtl ? 'past' : 'future';
+
+			backgroundh.className = 'slide-background ' + ( h < indexh ? horizontalPast : h > indexh ? horizontalFuture : 'present' );
+
+			toArray( backgroundh.childNodes ).forEach( function( backgroundv, v ) {
+
+				backgroundv.className = 'slide-background ' + ( v < indexv ? 'past' : v > indexv ? 'future' : 'present' );
+
+			} );
+
+		} );
+
+		// Allow the first background to apply without transition
+		setTimeout( function() {
+			dom.background.classList.remove( 'no-transition' );
+		}, 1 );
+
+	}
+
 	/**
 	 * Determine what available routes there are for navigation.
 	 *

plugin/multiplex/index.js

@@ -30,6 +30,7 @@ app.configure(function() {
 });
 
 app.get("/", function(req, res) {
+	res.writeHead(200, {'Content-Type': 'text/html'});
 	fs.createReadStream(opts.baseDir + '/index.html').pipe(res);
 });
 

plugin/notes-server/index.js

@@ -30,6 +30,7 @@ app.configure(function() {
 });
 
 app.get("/", function(req, res) {
+	res.writeHead(200, {'Content-Type': 'text/html'});
 	fs.createReadStream(opts.baseDir + '/index.html').pipe(res);
 });
 

plugin/notes/notes.html

@@ -213,9 +213,9 @@
 							now = new Date();
 
 						diff = now.getTime() - start.getTime();
-						hours = parseInt( diff / ( 1000 * 60 * 60 ) );
+						hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
-						minutes = parseInt( ( diff / ( 1000 * 60 ) ) % 60 );
+						minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
-						seconds = parseInt( ( diff / 1000 ) % 60 );
+						seconds = Math.floor( ( diff / 1000 ) % 60 );
 
 						clockEl.innerHTML = now.toLocaleTimeString();
 						hoursEl.innerHTML = zeroPadInteger( hours );

test/background.html

@@ -0,0 +1,95 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Test</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../css/reveal.min.css">
+		<link rel="stylesheet" href="../css/theme/serif.css" id="theme">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section data-background="#00ffff">
+					<h2>data-background: #00ffff</h2>
+				</section>
+
+				<section data-background="#bb00bb">
+					<h2>data-background: #bb00bb</h2>
+				</section>
+
+				<section>
+					<section data-background="#ff0000">
+						<h2>data-background: #ff0000</h2>
+					</section>
+					<section data-background="rgba(0, 0, 0, 0.2)">
+						<h2>data-background: rgba(0, 0, 0, 0.2)</h2>
+					</section>
+					<section data-background="salmon">
+						<h2>data-background: salmon</h2>
+					</section>
+				</section>
+
+				<section data-background="rgba(0, 100, 100, 0.2)">
+					<section>
+						<h2>Background applied to stack</h2>
+					</section>
+					<section>
+						<h2>Background applied to stack</h2>
+					</section>
+					<section data-background="rgba(100, 0, 0, 0.2)">
+						<h2>Background applied to slide inside of stack</h2>
+					</section>
+				</section>
+
+				<section data-background="assets/image1.png" style="background: rgba(255,255,255,0.9)">
+					<h2>Background image</h2>
+				</section>
+
+				<section data-background="assets/image2.png" data-background-size="100px" data-background-repeat="repeat" data-background-color="#111" style="background: rgba(255,255,255,0.9)">
+					<h2>Background image</h2>
+					<pre>data-background-size="100px" data-background-repeat="repeat" data-background-color="#111"</pre>
+				</section>
+
+				<section data-background="#888888">
+					<h2>Same background twice (1/2)</h2>
+				</section>
+				<section data-background="#888888">
+					<h2>Same background twice (2/2)</h2>
+				</section>
+				
+			</div>
+
+		</div>
+
+		<script src="../lib/js/head.min.js"></script>
+		<script src="../js/reveal.min.js"></script>
+
+		<script>
+
+			// Full list of configuration options available here:
+			// https://github.com/hakimel/reveal.js#configuration
+			Reveal.initialize({
+				controls: true,
+				progress: true,
+				history: true,
+				center: true,
+				// rtl: true,
+
+				transition: 'linear',
+				// transitionSpeed: 'slow',
+				// backgroundTransition: 'linear'
+			});
+
+		</script>
+
+	</body>
+</html>

test/media.html

@@ -0,0 +1,58 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Test</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../css/reveal.min.css">
+		<link rel="stylesheet" href="../css/theme/default.css" id="theme">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>Embedded Media Test</h2>
+				</section>
+
+				<section>
+					<iframe data-autoplay width="420" height="345" src="http://www.youtube.com/embed/l3RQZ4mcr1c"></iframe>
+				</section>
+
+				<section>
+					<h2>Empty Slide</h2>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../lib/js/head.min.js"></script>
+		<script src="../js/reveal.min.js"></script>
+
+		<script>
+
+			// Full list of configuration options available here:
+			// https://github.com/hakimel/reveal.js#configuration
+			Reveal.initialize({
+				controls: true,
+				progress: true,
+				history: true,
+				center: true,
+
+				transition: 'linear',
+				// transitionSpeed: 'slow',
+				// backgroundTransition: 'linear'
+			});
+
+		</script>
+
+	</body>
+</html>