WD: HTML 5.3 (Call for Wide Review)

HTML 5.3

https://www.w3.org/TR/2018/WD-html53-20180426/

Abstract


This specification defines the 5th major version, third 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 the 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 https://www.w3.org/TR/. 

This document was published by the Web Platform Working Group as a Working Draft. 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. 

This document is proposed to the Working Group as a Public Working Draft for HTML 5.3, reflecting the "leading edge" of what is interoperably deployed as HTML. 

This specification is ready for wide review. Review is particularly requested on significant changes made to the specification, noted in the changelog section. 

The following features are considered candidates for being marked "at risk" and unless testing before or during Candidate Recommendation demonstrates interoperable implementation will be not be included in a Proposed Recommendation, per W3C Process - 6.4 Candidate Recommendation:  the autocapitalize attribute; focusing the dialog instead of the first focusable element if there are no autofocus elements, see issue 773 the disableRemotePlayback attribute; registerContentHandler(), unregisterContentHandler() and isContentHandlerRegistered() methods; customized built-in elements and the is attribute The algorithm for creating an outline; The :defined pseudo-class; Allowing multiple meta elements with name="description"; the rtc element; the decoding attribute for the img element. 

The following changes from HTML 5.2 are considered "at risk"may be reverted if they cause compatibility problems:  Allowing multiple meta elements with name="description". 

Publication as a Working Draft 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 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 February 2018 W3C Process Document.