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HTML5 Overview: New Structure, Semantics, and Implementations

Learn about the new structure and semantics introduced in HTML5, including implementations like <header>, <nav>, <article>, <aside>, <footer>, and more. Discover the latest multimedia video and canvas features, along with developer tools like Validator.nu for HTML5 conformance checking. Explore parsing in HTML5 with html5lib parsing library and reduce reliance on RegExp hacks. Credits to various sources for images. Visit lachy.id.au/slides for full credits.

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HTML5 Overview: New Structure, Semantics, and Implementations

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  1. HTML 5 Overview • Lachlan Hunt • PubCon, Las Vegas 2008-11-13

  2. New Structure and Semantics

  3. <header> <nav> <article> <aside> <footer>

  4. <time> <figure> <legend> <meter>

  5. <h1> <section> <h1> <h1>

  6. Element Implementations • No native support, but can be styled with CSS in • Opera • Firefox 3.0 • Safari • IE 6 and 7 using simple createElement() hack

  7. New Multimedia

  8. Video • Native video support in browsers • DOM APIs for providing custom interfaces • No more dependence upon Flash

  9. Video Implementations • Opera (Experimental, Ogg Theora) • Safari 3.1 (All QuickTime formats) • Firefox 3.1 alpha 2 (Ogg Theora)

  10. Canvas • Dynamically draw graphics and text • Graphics-oriented DOM APIs

  11. Canvas Implementations • Opera • Firefox • Safari • IE 6+ using ExplorerCanvas script

  12. Developer Tools

  13. Validator.nu • HTML5 Conformance Checker • Exceeds the capabilities of traditional DTD based validation

  14. Parsing HTML 5 • html5lib Parsing Library for HTML • Python, Ruby • Off-the-shelf parser reduces reliance on RegExp hacks

  15. Credits • Some images were shamelessly stolen from the web. Various licences apply. For full credits, see: • http://lachy.id.au/slides/

  16. whatwg.orgwww.w3.org

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