306 lines
13 KiB
Markdown
306 lines
13 KiB
Markdown
# reveal.js
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A CSS 3D slideshow tool for quickly creating good looking HTML presentations. Doesn't _rely_ on any external libraries but [highlight.js](http://softwaremaniacs.org/soft/highlight/en/description/) is included by default for code highlighting.
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Note that this requires a browser with support for CSS 3D transforms and ``classList``. If CSS 3D support is not detected, the presentation will degrade to less exciting 2D transitions. A [classList polyfill](http://purl.eligrey.com/github/classList.js/blob/master/classList.js) is incuded to make this work in < iOS 5, < Safari 5.1 and IE.
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Curious about how it looks in action? [Check out the demo page](http://lab.hakim.se/reveal-js/).
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## Usage
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### Markup
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Markup heirarchy needs to be ``<div class="reveal"> <div class="slides"> <section>`` where the ``<section>`` represents one slide and can be repeated indefinitely. If you place multiple ``<section>``'s inside of another ``<section>`` they will be shown as vertical slides. For example:
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```html
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<div class="reveal">
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<div class="slides">
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<section>Single Horizontal Slide</section>
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<section>
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<section>Vertical Slide 1</section>
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<section>Vertical Slide 2</section>
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</section>
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</div>
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</div>
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```
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### Markdown
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It's possible to write your slides using Markdown. To enable Markdown simply add the ```data-markdown``` attribute to your ```<section>``` elements and reveal.js will automatically load the JavaScript parser.
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This is based on [data-markdown](https://gist.github.com/1343518) from [Paul Irish](https://github.com/paulirish) which in turn uses [showdown](https://github.com/coreyti/showdown/). This is sensitive to indentation (avoid mixing tabs and spaces) and line breaks (avoid consecutive breaks). Updates to come.
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```html
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<section data-markdown>
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## Page title
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A paragraph with some text and a [link](http://hakim.se).
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</section>
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```
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### Configuration
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At the end of your page, after ``<script src="js/reveal.js"></script>``, you need to initialize reveal by running the following code. Note that all config values are optional and will default as specified below.
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```javascript
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Reveal.initialize({
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// Display controls in the bottom right corner
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controls: true,
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// Display a presentation progress bar
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progress: true,
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// Push each slide change to the browser history
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history: false,
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// Enable keyboard shortcuts for navigation
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keyboard: true,
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// Loop the presentation
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loop: false,
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// Number of milliseconds between automatically proceeding to the
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// next slide, disabled when set to 0
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autoSlide: 0,
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// Enable slide navigation via mouse wheel
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mouseWheel: true,
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// Apply a 3D roll to links on hover
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rollingLinks: true,
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// UI style
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theme: 'default', // default/neon/beige
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// Transition style
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transition: 'default' // default/cube/page/concave/linear(2d)
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});
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```
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### API
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The Reveal class provides a minimal JavaScript API for controlling navigation and reading state:
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```javascript
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// Navigation
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Reveal.navigateTo( indexh, indexv );
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Reveal.navigateLeft();
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Reveal.navigateRight();
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Reveal.navigateUp();
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Reveal.navigateDown();
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Reveal.navigatePrev();
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Reveal.navigateNext();
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Reveal.toggleOverview();
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// Retrieves the previous and current slide elements
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Reveal.getPreviousSlide();
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Reveal.getCurrentSlide();
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Reveal.getIndices(); // { h: 0, v: 0 } }
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```
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### States
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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.
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Furthermore you can also listen to these changes in state via JavaScript:
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```javascript
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Reveal.addEventListener( 'somestate', function() {
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// TODO: Sprinkle magic
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}, false );
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```
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### Slide change event
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An 'slidechanged' event is fired each time the slide is changed (regardless of state). The event object holds the index values of the current slide as well as a reference to the previous and current slide HTML nodes.
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```javascript
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Reveal.addEventListener( 'slidechanged', function( event ) {
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// event.previousSlide, event.currentSlide, event.indexh, event.indexv
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} );
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```
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### Fragment events
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When a slide fragment is either shown or hidden reveal.js will dispatch an event.
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```javascript
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Reveal.addEventListener( 'fragmentshown', function( event ) {
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// event.fragment = the fragment DOM element
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} );
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Reveal.addEventListener( 'fragmenthidden', function( event ) {
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// event.fragment = the fragment DOM element
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} );
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```
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### Folder Structure
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- **css/** Core styles without which the project does not function
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- **js/** Like above but for JavaScript
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- **plugin/** Components that have been developed as extensions to reveal.js
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- **lib/** All other third party assets (JavaScript, CSS, fonts)
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## PDF Export
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Presentations can be exported to PDF via a special print stylesheet. This feature requires that you use [Google Chrome](http://google.com/chrome).
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Here's an example of an exported presentation that's been uploaded to SlideShare: http://www.slideshare.net/hakimel/revealjs-13872948.
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1. Open the desired presentation with *print-pdf* anywhere in the query, for example: [lab.hakim.se/reveal-js?print-pdf](http://lab.hakim.se/reveal-js?print-pdf)
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2. Open the in-browser print dialog (CMD+P).
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3. Change the **Destination** setting to **Save as PDF**.
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4. Change the **Layout** to **Portrait**.
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5. Change the **Margins** to **None**.
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6. Click **Save**.
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## Speaker Notes
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If you're interested in using speaker notes, reveal.js comes with a Node server that allows you to deliver your presentation in one browser while viewing speaker notes in another.
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To include speaker notes in your presentation, simply add an `<aside class="notes">` element to any slide. These notes will be hidden in the main presentation view.
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You'll also need to [install Node.js](http://nodejs.org/); then, install the server dependencies by running `npm install`.
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Once Node.js and the dependencies are installed, run the following command from the root directory:
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node plugin/speakernotes
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By default, the slides will be served at [localhost:1947](http://localhost:1947).
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You can change the appearance of the speaker notes by editing the file at `plugin/speakernotes/notes.html`.
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### Known Issues
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- The notes page is supposed to show the current slide and the next slide, but when it first starts, it always shows the first slide in both positions.
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## Examples
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* http://lab.hakim.se/reveal-js/ (original)
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* http://www.ideapolisagency.com/ by [@achrafkassioui](http://twitter.com/achrafkassioui)
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* http://lucienfrelin.com/ by [@lucienfrelin](http://twitter.com/lucienfrelin)
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* http://creatorrr.github.com/ThePoet/
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* http://moduscreate.com/ by [@ModusCreate](https://twitter.com/ModusCreate)
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* http://idea.diwank.name/ by [Diwank Singh](http://diwank.name/)
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* [Webapp Development Stack & Tooling](http://dl.dropbox.com/u/39519/talks/jquk-tooling%2Bappstack/index.html) by [Paul Irish](https://github.com/paulirish)
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* [Lock-free algorithms](http://concurrencykit.org/presentations/lockfree_introduction/) by Samy Al Bahra
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* [Not Your Average Drag and Drop](http://www.thecssninja.com/talks/not_your_average_dnd/) by [Ryan Seddon](https://github.com/ryanseddon)
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* [Elasticsearch](http://spinscale.github.com/elasticsearch/2012-03-jugm.html) by [@spinscale](http://twitter.com/spinscale)
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* [JavaScript Tooling](http://dl.dropbox.com/u/39519/talks/jsconf-tools/index.html) by [Paul Irish](https://github.com/paulirish)
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* [The Graphical Web: Fostering Creativity](http://vhardy.github.com/presentations/html5-community-meet-up-2012/) by [Vincent Hardy](https://github.com/vhardy)
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* [Mobile Web Programming is a Bloody Mess](http://westcoastlogic.com/slides/debug-mobile/) by [Brian LeRoux](https://github.com/brianleroux)
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* [Bio Database Access and Sequence Alignment](http://www.philipbjorge.com/bioinformatics-presentation/) by [Philip Bjorge](https://github.com/philipbjorge)
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* [Web vs Native](http://prez.mahemoff.com/state-native/) by [Michael Mahemoff](https://github.com/mahemoff)
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* [Continuously Integrated JS Development](http://trodrigues.net/presentations/buster-ci/) by [Tiago Rodrigues](https://github.com/trodrigues)
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* [To be Future Friendly is to be Device Agnostic](http://dl.dropbox.com/u/409429/presentations/toster-2012/index.html) by [Joe McCann](https://github.com/joemccann)
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* [The Web Development Workflow of 2013](http://dl.dropbox.com/u/39519/talks/fluent/index.html) by [Paul Irish](https://github.com/paulirish)
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* [How To Cope With Graphical Challenges Using Latest Web Technologies](http://alexw.me/playground/slideshows/w3c_netcraft/) by [Alex Wolkov](https://github.com/altryne)
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* [Going Deeper with jQuery Mobile](http://andymatthews.net/downloads/presentations/going-deeper-with-jquery-mobile/) by [Andy Matthews](https://github.com/commadelimited)
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* [Studio Nord](http://studionord.org)
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* [Herrljunga Cider](http://herrljungacider.se/uk/campaign/)
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* [PhoneGap Pain Points](http://phonegap-pain-points.appspot.com/) by [Pamela Fox](https://github.com/pamelafox)
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* [Using HTML5 To Power Your Game Production](http://www.blitzgamesstudios.com/blitztech/html5-presentation) by Richard Hackett
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[Send me a link](http://hakim.se/about/contact) if you used reveal.js for a project or presentation.
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## History
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#### 1.5 (master/beta)
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- New API method ```Reveal.getPreviousSlide()```
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- New API method ```Reveal.getCurrentSlide()```
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- New API method ```Reveal.getIndices()```
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- Fixed bug where the ```.present``` class was sometimes left on the previous slide
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- Added support for slides written using markdown
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- Added helped method ```Reveal.getQueryHash()```
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- Added EOT font for IE support
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- IE8 support
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- Fixed bug where hovering 3D links in Chrome caused them to disappear
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- Disable 3D links in IE and more accurate CSS feature detection
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- CSS is more relative in sizing to allow for low resolutions. Thanks [StereotypicalApps](https://github.com/StereotypicalApps)
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- PDF export ([instructions](https://github.com/hakimel/reveal.js#pdf-export))
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#### 1.4
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- Main ```#reveal container``` is now selected via a class instead of ID
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- API methods for adding or removing all event listeners
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- The ```slidechange``` event now includes currentSlide and previousSlide
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- Fixed bug where ```slidechange``` was firing twice when history was enabled
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- Folder structure updates for scalability (see /lib & /plugin)
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- Slide notes by [rmurphey](https://github.com/rmurphey)
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- Bumped up default font-size for code samples
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- Added beige theme
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- Added ```autoSlide``` config
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- Bug fix: The ```slidechanged``` event is now firing upon ```hashchange```. Thanks [basecode](https://github.com/basecode)
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- Bug fix: JS error when the ```progress``` option was true but there was no progress DOM element
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- ```keyboard``` config flag for disabling all keyboard navigation
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#### 1.3
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- Revised keyboard shortcuts, including ESC for overview, N for next, P for previous. Thanks [mahemoff](https://github.com/mahemoff)
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- Added support for looped presentations via config
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- Fixed IE9 fallback
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- Added event binding methods (```Reveal.addEventListener```, ```Reveal.removeEventListener```)
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- Added ```slidechanged``` event
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- Added print styles. Thanks [skypanther](https://github.com/skypanther)
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- The address bar now hides automatically on mobile browsers
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- Space and return keys can be used to exit the overview mode
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- Events for fragment states (```fragmentshown``` / ```fragmenthidden```)
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- Support for swipe navigation on touch devices. Thanks [akiersky](https://github.com/akiersky)
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- Support for pinch to overview on touch devices
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#### 1.2
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- Big changes to DOM structure:
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- Previous ```#main``` wrapper is now called ```#reveal```
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- Slides were moved one level deeper, into ```#reveal .slides```
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- Controls and progress bar were moved into ```#reveal```
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- CSS is now much more explicit, rooted at ```#reveal```, to prevent conflicts
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- Config option for disabling updates to URL, defaults to true
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- Anchors with image children no longer rotate in 3D on hover
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- Support for mouse wheel navigation ([naugtur](https://github.com/naugtur))
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- Delayed updates to URL hash to work around a bug in Chrome
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- Included a ```classList``` polyfill for IE9
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- Support for wireless presenter keys
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- States can now be applied as classes on the document element by adding ```data-state``` on a slide
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#### 1.1
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- Added an optional presentation progress bar
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- Images wrapped in anchors no longer unexpectedly flip in 3D
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- Slides that contain other slides are given the 'stack' class
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- Added ```transition``` option for specifying transition styles
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- Added ```theme``` option for specifying UI styles
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- New transitions: ```box``` & ```page```
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- New theme: ```neon```
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#### 1.0
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- New and improved style
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- Added controls in bottom right which indicate where you can navigate
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- Reveal views in iteratively by giving them the ```.fragment``` class
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- Code sample syntax highlighting thanks to [highlight.js](http://softwaremaniacs.org/soft/highlight/en/description/)
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- Initialization options (toggling controls, toggling rolling links, transition theme)
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#### 0.3
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- Added licensing terms
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- Fixed broken links on touch devices
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#### 0.2
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- Refactored code and added inline documentation
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- Slides now have unique URL's
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- A basic API to invoke navigation was added
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#### 0.1
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- First release
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- Transitions and a white theme
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## License
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MIT licensed
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Copyright (C) 2012 Hakim El Hattab, http://hakim.se |