HTML 5.1

W3C Candidate Recommendation,

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Editor's Draft:
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(The Paciello Group)
Former Editors:
(Apple Inc.)
Robin Berjon (W3C)
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This specification defines the 5th major version, first minor revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). In this version, new features continue to be introduced to help Web application authors, new elements continue to be introduced based on research into prevailing authoring practices, and special attention continues to be given to defining clear conformance criteria for user agents in an effort to improve interoperability.

Status of this document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.

This document was published by the Web Platform Working Group as a Candidate Recommendation. This document is intended to become a W3C Recommendation. Feedback and comments on this specification are welcome. Please use Github issues. Historical discussions can be found in the public-html@w3.org archives.

The entrance criteria for this document to move to Proposed Recommendation with at least two independent implementations passing each new feature. The Working Group will prepare an implementation report to track progress.

By publishing this Candidate Recommendation, W3C expects the functionality specified in this Candidate Recommendation will minimally be affected by changes to Fetch. The Working Group will continue to track the Fetch specification [FETCH] and raise issues when changes there will impact this specification.

By publishing this Candidate Recommendation, W3C expects the functionality specified in this Candidate Recommendation will not be affected by changes to Fullscreen as this specification proceeds to Recommendation. The Working Group will continue to track the Fullscreen specification [FULLSCREEN].

W3C publishes a Candidate Recommendation to indicate that the document is believed to be stable and to encourage implementation by the developer community. This Candidate Recommendation is expected to advance to Proposed Recommendation no earlier than 19 July 2016.

Publication as a Candidate Recommendation does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

This document is governed by the 1 September 2015 W3C Process Document.

The following features are at-risk, and may be dropped during the CR period:

“At-risk” is a W3C Process term-of-art, and does not necessarily imply that the feature is in danger of being dropped or delayed. It means that the WG believes the feature may have difficulty being interoperably implemented in a timely manner, and marking it as such allows the WG to drop the feature if necessary when transitioning to the Proposed Rec stage, without having to publish a new Candidate Rec without the feature first.