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HTML 5 Cheat Sheet (PDF)
Lists all currently supported tags, their descriptions, their attributes and their support in HTML 4
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HTML 5 Visual Cheat Sheet
Useful cheat sheet for web designers and developers
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HTML-5-tutorial
A tutorial for beginners
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HTML5 (Edition for Web Authors)
A vocabulary and associated APIs for HTML and XHTML
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HTML5 - Edition for Web Developers
A technical specification for Web developers
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HTML5 accessibility
This site is a resource to provide information about which new HTML5 user interface features are accessibility supported in browsers, making them usable by people who rely upon assistive technology (AT) to use the web
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