A presentation at WebVisions Portland 2011 in in Portland, OR, USA by Scott Vandehey
Introduction to HTML5 Scott Vandehey Front-End Web Developer ELC Technologies @spaceninja
Why make a new version of HTML? (For the long version:) diveintohtml5.org/past.html
HTML5 Design Principles ref: bit.ly/html-principles Image credit: Dale Stephanos
Photo credit: Jacinta Lodge Support Existing Content
Photo credit: Kevin Simpson Degrade Gracefully
Photo credit: Jeremy Keith Pave the Cowpaths
Photo credit: Ian “Bluemoose” Priority of Constituencies USERS > AUTHORS > IMPLEMENTORS > SPECIFIERS > PURITY
Photo credit: Kris Krug Top 3 New Features
New input types <input type=”email”> <input type=”tel”> <input type=”url”> <input type=”number”> and many more!
Search <input type=”search”>
Placeholder <input placeholder=”your name”>
Validation <input required>
ContentEditable <div contenteditable> Click on me to edit! </div>
Recognize this? <object classid=”clsid:d27cdb6e-ae6d-11cf-96b8-444553540000” width=”640” height=”360” codebase=”http:// download.macromedia.com/pub/shockwave/cabs/flash/ swflash.cab#version=6,0,40,0”><param name=”flashvars” value=”guid=BQtfIEY1&width=640&height=360&locksiz e=no&dynamicseek=false&qc_publisherId=p-18mFEk4J448M” /><param name=”src” value=”http://v.example.com/ media/plugins/video/flvplayer.swf?ver=1.21” /><param name=”wmode” value=”transparent” /><param name=”allowfullscreen” value=”true” /><embed type=”application/x-shockwave-flash” width=”640” height=”360” src=”http://v.example.com/media/plugins/video/flvplayer.swf? ver=1.21” allowfullscreen=”true” wmode=”transparent” flashvars=”guid=BQtfIEY1&width=640&height=360&loc ksize=no&dynamicseek=false&qc_publisherId=p-18mFEk4J448M”></embed></object>
That’s better <video src=”movie.mp4”></video>
Multiple sources <video controls width=”360” height=”240”> <source src=”movie.webm” type=’video/webm; codecs=”vp8, vorbis”’> <source src=”movie.ogv” type=’video/ogg; codecs=”theora, vorbis”’> <source src=”movie.mp4” type=’video/mp4; codecs=”avc1.42E01E, mp4a.40.2”’> </video>
Multiple fallbacks <video controls width=”360” height=”240”> <source …> <source …> <source …> <object> … flash stuff here … <a href=”movie.mp4”>Download the movie.</a> </object> </video>
Safari 3+ Firefox 3.5+ Chrome 3+ IE8 (flash)
Image credit: A List Apart
Image credit: A List Apart
Doctype & Charset <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict //EN” “http://www.w3c.org/TR/xhtml1/DTD/xhtml1-strict.dtd”>
<!DOCTYPE html> <meta http-equiv=”Content-Type” content=”text/html; charset=UTF-8” /> <meta charset=”UTF-8”>No type for JS & CSS <script type=”text/javascript” src=”x.js”></script>
<script src=”x.js”></script> <link type=”text/css” rel=”stylesheet” media=”screen” href=”x.css” /> <link rel=”stylesheet” media=”screen” href=”x.css”>How to convert your site to HTML5 in one easy step
It’s Easy! Change this: <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”> to this: <!DOCTYPE html>
Browser shims Add this to your stylesheet: section, article, header, footer, nav, aside, hgroup { display: block; } Add this conditional comment to your head: <!—[if IE]> <script src=”http://html5shim.googlecode.com/ ↩ svn/trunk/html5.js”></script> <![endif]—>
Rumor: Browsers don’t support HTML5 False: All modern browsers have implemented HTML5 to some degree, and there’s no reason not to use the parts that work today.
Rumor: HTML5 won’t be ready until 2022 False: 2009: W3C Working Draft 2012: W3C Recommendation 2022: two complete implementations
Rumor: HTML5 takes us back to tag soup False: HTML5 allows you to use HTML or XHTML syntax.
Thank You To learn more: abookapart.com diveintohtml5.org Follow me on Twitter: @spaceninja </presentation>
HTML5 is ready to use today, and Scott Vandehey can show you how to use it in your site. During this session, you will learn the answer to these questions:
By the end, you will see that converting your site to HTML5 can offer you real benefits, and will position you to easily take advantage of new features as they become available. With its focus on graceful degradation, there’s no reason to delay. Learn how HTML5 can help you!
This session is intended for beginner to intermediate level front-end developers and designers. You should have a healthy interest in markup.
We will be introducing some of the new elements, such as Article, Section, and Video, but not the new APIs like drag-and-drop or geolocation.
for free. You
can too.