HTML 5

Draft Recommendation — [DATE: 01 Jan 1901]

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Multiple-page version:: http://whatwg.org/html5
One-page version:: http://www.whatwg.org/specs/web-apps/current-work/
PDF print versions:: A4: http://www.whatwg.org/specs/web-apps/current-work/html5-a4.pdf; Letter: http://www.whatwg.org/specs/web-apps/current-work/html5-letter.pdf
Version history:: Twitter messages (non-editorial changes only): http://twitter.com/WHATWG; Commit-Watchers mailing list: http://lists.whatwg.org/listinfo.cgi/commit-watchers-whatwg.org; Interactive Web interface: http://html5.org/tools/web-apps-tracker; Subversion interface: http://svn.whatwg.org/; HTML diff with the last version in Subversion: http://whatwg.org/specs/web-apps/current-work/index-diff
Issues:: To send feedback: whatwg@whatwg.org; To view and vote on feedback: http://www.whatwg.org/issues/
Editor:: Ian Hickson, Google, ian@hixie.ch

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Abstract

This specification evolves HTML and its related APIs to ease the authoring of Web-based applications. Additions include context menus, a direct-mode graphics canvas, a full duplex client-server communication channel, more semantics, audio and video, various features for offline Web applications, sandboxed iframes, and scoped styling. Heavy emphasis is placed on keeping the language backwards compatible with existing legacy user agents and on keeping user agents backwards compatible with existing legacy documents.

Status of this document

This is a work in progress! This document is changing on a daily if not hourly basis in response to comments and as a general part of its development process. Comments are very welcome, please send them to whatwg@whatwg.org. Thank you.

Implementors should be aware that this specification is not stable. Implementors who are not taking part in the discussions are likely to find the specification changing out from under them in incompatible ways. Vendors interested in implementing this specification before it eventually reaches the call for implementations should join the WHATWG mailing list and take part in the discussions.

This specification is also being produced by the W3C HTML WG. The two specifications are identical from the table of contents onwards.

This specification is intended to replace (be the new version of) what was previously the HTML4, XHTML 1.x, and DOM2 HTML specifications.