This specification is available in the following formats: single page HTML, multipage HTML, web developer edition. This is Revision: 1.4938.
Copyright © 2011 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C liability, trademark and document use rules apply.
The bulk of the text of this specification is also available in the WHATWG Web Applications 1.0 specification, under a license that permits reuse of the specification text.
This specification defines the 5th major revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). In this version, new features are introduced to help Web application authors, new elements are introduced based on research into prevailing authoring practices, and special attention has been given to defining clear conformance criteria for user agents in an effort to improve interoperability.
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/.
If you wish to make comments regarding this document in a manner that is tracked by the W3C, please submit them via using our public bug database. If you do not have an account then you can enter feedback using this form:
If you cannot do this then you can also e-mail feedback to public-html-comments@w3.org (subscribe, archives), and arrangements will be made to transpose the comments to our public bug database. Alternatively, you can e-mail feedback to whatwg@whatwg.org (subscribe, archives). The editor guarantees that all substantive feedback sent to this list will receive a reply. However, such feedback is not considered formal feedback for the W3C process. All feedback is welcome.
The working groups maintains a list of all bug reports that the editor has not yet tried to address and a list of issues for which the chairs have not yet declared a decision. The editor also maintains a list of all e-mails that he has not yet tried to address. These bugs, issues, and e-mails apply to multiple HTML-related specifications, not just this one.
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.
This is a work in progress! For the latest updates from the HTML WG, possibly including important bug fixes, please look at the editor's draft instead.
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) contains the latest draft text of this specification (amongst others). For more details, please see the WHATWG FAQ.
There are various ways to follow the change history for the HTML specifications:
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 24 May 2011 Working Draft.
Work on this specification is also done at the WHATWG. The W3C HTML working group actively pursues convergence with the WHATWG, as required by the W3C HTML working group charter.
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.
a
elementem
elementstrong
elementsmall
elements
elementcite
elementq
elementdfn
elementabbr
elementtime
elementcode
elementvar
elementsamp
elementkbd
elementsub
and sup
elementsi
elementb
elementu
elementmark
elementruby
elementrt
elementrp
elementbdi
elementbdo
elementspan
elementbr
elementwbr
elementimg
element
iframe
elementembed
elementobject
elementparam
elementvideo
elementaudio
elementsource
elementtrack
elementcanvas
element
map
elementarea
elementtable
element
caption
elementcolgroup
elementcol
elementtbody
elementthead
elementtfoot
elementtr
elementtd
elementth
elementtd
and th
elementsform
elementfieldset
elementlegend
elementlabel
elementinput
element
type
attribute
input
element attributes
autocomplete
attributedirname
attributelist
attributereadonly
attributesize
attributerequired
attributemultiple
attributemaxlength
attributepattern
attributemin
and max
attributesstep
attributeplaceholder
attributeinput
element APIsbutton
elementselect
elementdatalist
elementoptgroup
elementoption
elementtextarea
elementkeygen
elementoutput
elementprogress
elementmeter
elementdetails
elementsummary
elementcommand
elementmenu
element
a
element to define a commandbutton
element to define a commandinput
element to define a commandoption
element to define a commandcommand
element to define
a commandaccesskey
attribute on a label
element to define a commandaccesskey
attribute on a legend
element to define a commandaccesskey
attribute to define a command on other elementsa
and area
elementsalternate
"author
"bookmark
"external
"help
"icon
"license
"nofollow
"noreferrer
"pingback
"prefetch
"search
"sidebar
"stylesheet
"tag
"Window
object
hidden
attributecontenteditable
attribute
button
elementdetails
elementinput
element as a text entry widgetinput
element as domain-specific widgetsinput
element as a range controlinput
element as a color wellinput
element as a checkbox and radio button widgetsinput
element as a file upload controlinput
element as a buttonmarquee
elementmeter
elementprogress
elementselect
elementtextarea
elementkeygen
elementtime
element