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 is a W3C Candidate Recommendation, which means the specification has been widely reviewed and W3C recommends that it be implemented. It will remain Candidate Recommendation at least until 23 July 2009. A test suite and an implementations report will be provided before the document becomes a Proposed Recommendation.
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.
The (archived) public mailing list www-style@w3.org (see instructions) is preferred for discussion of this specification. When sending e-mail, please put the text “[CSS21]” in the subject, preferably like this: “[CSS21] …summary of comment…”
This document incorporates errata resulting from implementation experience since the previous publication. Some of the corrections remove ambiguities or change the behavior in edge cases, and therefore it is expected that another Working Draft will (briefly) precede the Proposed Recommendation, in order to invite more review.
This document was produced by the CSS Working Group (part of the Style Activity).
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.
Candidate Recommendation Exit Criteria
For this specification to exit the CR stage, the following conditions must be met:
There must be at least two interoperable implementations for every feature. For the purposes of this criterion, we define the following terms:
- feature
A section or subsection of the specification.
- interoperable
passing the respective test cases in the test suite, or, if the implementation is not a web browser, equivalent tests. Every relevant test in the test suite should have an equivalent test created if such a UA is to be used to claim interoperability. In addition if such a UA is to be used to claim interoperability, then there must one or more additional UAs which can also pass those equivalent tests in the same way for the purpose of interoperability. The equivalent tests must be made publicly available for the purposes of peer review.
- implementation
a user agent which:
- implements the feature.
- is available (i.e. publicly downloadable or available through some other public point of sale mechanism). This is the "show me" requirement.
- is shipping (i.e. development, private or unofficial versions are insufficient).
- is not experimental (i.e. is intended for a wide audience and could be used on a daily basis).
A minimum of six months of the CR period must have elapsed. This is to ensure that enough time is given for any remaining major errors to be caught.
The CR period will be extended if implementations are slow to appear.
Features that were not in CSS1 will be dropped (thus reducing the list of "all" features mentioned above) if two or more interoperable implementations of those features are not found by the end of the CR period.
Features will also be dropped if sufficient and adequate tests (by judgment of the working group) have not been produced for those features by the end of the CR period.
Features at risk
The working group has identified the following features as being currently poorly implemented by UAs. They are therefore most at risk of being removed from CSS 2.1 when exiting CR. (Any changes of this nature will still result in the specification being returned to last call.) Implementors are urged to implement these features, or correct bugs in their implementations, if they wish to see these features remain in this specification.
- New 'list-style-type' values
- 'armenian'
- 'georgian'
- 'lower-greek'
Implementors are advised to look at CSS3 Lists instead, where these and many other new values not found in CSS1 are defined in detail. [CSS3LIST]
- Support for multiple ID attributes for the ID selector
Because implementations are not expected to support multiple IDs per element soon, this feature may be made informative. The W3C Selectors specification will continue to have this feature normatively. (Section 5.9.)
- Automatic table layout algorithm
The input to the suggested (non-normative) automatic layout algorithm for tables is restricted to (1) the containing block width and (2) the content and properties of the table and its children. This restriction may be lifted.
- Quotes
The 'quotes' property and the 'open-quote', 'close-quote', 'no-open-quote' and 'no-close-quote' keywords may be dropped.
- BODY element in XHTML
The effect of 'overflow' and 'background' is different on BODY elements in HTML than on other elements. It may be that the exceptional handling of BODY in HTML is extended to BODY in XHTML1.
(http://www.w3.org/TR/CSS21/#status)
Status of this document
This section describes the status of this document at the time of its publication. Other documents may supersede this document. The latest status of this document series is maintained at the W3C.
This document specifies HTML 4.01, which is part of the HTML 4 line of specifications. The first version of HTML 4 was HTML 4.0 [HTML40], published on 18 December 1997 and revised 24 April 1998. This specification is the first HTML 4.01 Recommendation. It includes non-editorial changes since the 24 April version of HTML 4.0. There have been some changes to the DTDs, for example. This document obsoletes previous versions of HTML 4.0, although W3C will continue to make those specifications and their DTDs available at the W3C Web site.
This document has been reviewed by W3C Members and other interested parties and has been endorsed by the Director as a W3C Recommendation. It is a stable document and may be used as reference material or cited as a normative reference from another document. W3C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability of the Web.
W3C recommends that user agents and authors (and in particular, authoring tools) produce HTML 4.01 documents rather than HTML 4.0 documents. W3C recommends that authors produce HTML 4 documents instead of HTML 3.2 documents. For reasons of backward compatibility, W3C also recommends that tools interpreting HTML 4 continue to support HTML 3.2 and HTML 2.0 as well.
For information about the next generation of HTML, "The Extensible HyperText Markup Language" [XHTML], please refer to the W3C HTML Activity and the list of W3C Technical Reports.
This document has been produced as part of the W3C HTML Activity. The goals of the HTML Working Group (Members only) are discussed in the HTML Working Group charter (Members only).
A list of current W3C Recommendations and other technical documents can be found at http://www.w3.org/TR.
Public discussion on HTML features takes place on www-html@w3.org (archives ofwww-html@w3.org).
Available languages
The English version of this specification is the only normative version. However, for translations of this document, see http://www.w3.org/MarkUp/html4-updates/translations.
Errata
- The list of known errors in this specification is available at:
- http://www.w3.org/MarkUp/html4-updates/errata
Please report errors in this document to www-html-editor@w3.org.
(http://www.w3.org/TR/html401/)
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 most recently formally published revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.
The WHATWG version of this specification is available under a license that permits reuse of the specification text.
If you wish to make comments regarding this document, please send them to public-html-comments@w3.org (subscribe, archives) or whatwg@whatwg.org (subscribe, archives), or submit them using our public bug database. All feedback is welcome.
We maintain a list of all e-mails that have not yet been considered and a list of all bug reports that have not yet been resolved.
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 Candidate Recommendation stage should join the aforementioned mailing lists and take part in the discussions.
The publication of this document by the W3C as a W3C Working Draft does not imply that all of the participants in the W3C HTML working group endorse the contents of the specification. Indeed, for any section of the specification, one can usually find many members of the working group or of the W3C as a whole who object strongly to the current text, the existence of the section at all, or the idea that the working group should even spend time discussing the concept of that section.
The latest stable version of the editor's draft of this specification is always available on the W3C CVS server and in the WHATWG Subversion repository. The latest editor's working copy (which may contain unfinished text in the process of being prepared) is also available.
There are various ways to follow the change history for the specification:
- E-mail notifications of changes
- HTML-Diffs mailing list (diff-marked HTML versions for each change): http://lists.w3.org/Archives/Public/public-html-diffs/latest
- Commit-Watchers mailing list (complete source diffs): http://lists.whatwg.org/listinfo.cgi/commit-watchers-whatwg.org
- Real-time notifications of changes:
- Generated diff-marked HTML versions for each change: http://twitter.com/HTML5
- All (non-editorial) changes to the spec source: http://twitter.com/WHATWG
- Browsable version-control record of all changes:
- CVSWeb interface with side-by-side diffs: http://dev.w3.org/cvsweb/html5/spec/Overview.html
- Annotated summary with unified diffs: http://html5.org/tools/web-apps-tracker
- Raw Subversion interface:
svn checkout http://svn.whatwg.org/webapps/The W3C HTML Working Group is the W3C working group responsible for this specification's progress along the W3C Recommendation track. This specification is the 15 June 2009 Editor's Draft.
This specification is also being produced by the WHATWG. The two specifications are identical from the table of contents onwards.
This specification is intended to replace (be a new version of) what was previously the HTML4, XHTML 1.0, and DOM2 HTML specifications.
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.
Stability
Different parts of this specification are at different levels of maturity.
(http://dev.w3.org/html5/spec/Overview.html#status-of-this-document)
Status of this document
This section describes the status of this document at the time of its publication. Other documents may supersede this document. The latest status of this document series is maintained at the W3C.
This document is the second edition of the XHTML 1.0 specification incorporating the errata changes as of 1 August 2002. Changes between this version and the previous Recommendation are illustrated in a diff-marked version.
This second edition is not a new version of XHTML 1.0 (first published 26 January 2000). The changes in this document reflect corrections applied as a result of comments submitted by the community and as a result of ongoing work within the HTML Working Group. There are no substantive changes in this document - only the integration of various errata.
The list of known errors in this specification is available at http://www.w3.org/2002/08/REC-xhtml1-20020801-errata.
Please report errors in this document to www-html-editor@w3.org (archive). Public discussion on HTML features takes place on the mailing list www-html@w3.org (archive).
This document has been produced as part of the W3C HTML Activity. The goals of the HTML Working Group (members only) are discussed in the HTML Working Group charter.
At the time of publication, the working group believed there were zero patent disclosures relevant to this specification. A current list of patent disclosures relevant to this specification may be found on the Working Group's patent disclosure page.
A list of current W3C Recommendations and other technical documents can be found at http://www.w3.org/TR.
(http://www.w3.org/TR/xhtml1/#status)