HTML5 is a markup language for structuring and presenting content for the World Wide Web. It is the fifth revision of the HTML standard. It is still under development, but its core features are now supported by all major browsers. HTML5 can be written in either HTML or XHTML syntax.

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W3C Candidate Recommendation specification for a vocabulary and associated APIs for HTML and XHTML.
Web Hypertext Application Technology Working Group (WHATWG)
A community of people interested in the development of HTML and APIs needed for Web applications. Its main focus is HTML5. Includes wiki, forums, FAQ and specifications.
Can I use...
Compatibility tables for support of HTML5, CSS3, SVG and other technologies in various browsers.
Draft US Web Design Standards
Web design standards for US federal websites, open-source UI components and visual styles to create beautiful, consistent experiences.
A JavaScript code to bring the canvas functionality to Internet Explorer.
HTML 5 Demos and Examples
Examples can be filtered according to browser support and technology used.
HTML 5 Gallery
A showcase of sites using the new markup. Aims to help web developers implement HTML5 on their own sites, and also to encourage browser vendors to improve their implementations in response to the increasing number of users.
HTML 5 Outliner
Online tool that presents the structure of HTML5 documents.
HTML5 Arena
Collection of quality HTML5 sites.
HTML5 Bookmarks
Bookmarks to news on HTML5 and related topics updated on a daily basis. Links to useful tools and resources.
HTML5 Doctor
A collaboration between a number of evangelists, which publishes articles and answers questions from the community.
HTML5 Please
Reviews of the HTML5 features, describing to what extent they are ready for use.
HTML5 Rocks
A resource for HTML5 developers: a searchable database of posts and tutorials.
HTML5 Showcase
A gallery of great HTML5 sites. Sites can be submitted.
The HTML5 Test
An online tool to see how well the browser used supports the standard. Uses a point scoring system and includes comparison tables.
Provides intelligent and creative html5 templates and wordpress themes. (X)HTML5 Validator
An implementation of the HTML5 parsing algorithm in Java in the form of an online tool. Several presets and options.
The Web Platform: Browser technologies
One page list to all the specifications of the modern web platform.
Standard specification from the Web Hypertext Application Technology Working Group. Includes a FAQ, version history and bug list.
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January 27, 2017 at 11:35:09 UTC
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