StackOverflow2013

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1979489
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2009-12-30T10:33:08.883
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2012-04-18T12:48:07.863
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2012-04-18T12:48:07.863
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text
Body
<p>Broadly speaking, there are four main areas of change:</p> <ul> <li><p>Semantic markup, including the following tags:</p> <p><code><section></code> <code><article></code> <code><header></code> <code><footer></code> <code><nav></code> <code><aside></code> <code><hgroup></code></p> <p>This also covers changes to the <code><doctype></code>, <code><html></code> and <code><meta></code> tags, as well as link relations (the rel attribute on an <code><a></code> tag).</p></li> <li><p>Improved form support - mainly semantic additions to input types, and a few neat things like field autofocus and placeholder text.</p></li> <li><p>Multimedia tags - <code><video></code>, <code><audio></code> and <code><canvas></code>. <code><video></code> and <code><audio></code> are intended to improved better support for embedded media in the page; <code><canvas></code> is for programmatic two-dimensional bitmap drawing on the page through JavaScript.</p></li> <li><p>Changes to the DOM that are just accessible through JS - <code>navigator.geolocation</code>, <code>window.localStorage</code> (storing user data offline), <code>window.applicationCache</code> (storing app data offline), web workers (multithreaded JavaScript, with some caveats)</p></li> </ul> <p>Different parts of HTML are in different stages of specification and implementation - the form changes are poorly supported outside of Safari, the <code><video></code> tag is basically unusable in a cross-platform environment (without multiple video formats), and IE has built-in support for next to none of these changes.</p> <p>The best place to read up on HTML5 that I've seen is Mark Pilgrim's excellent book in progress, <a href="http://diveintohtml5.info/" rel="nofollow noreferrer">Dive into HTML5</a></p>
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1. COthat is an excellent book, with a nice visual aesthetic
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