XHTML™ 1.0 The Extensible HyperText Markup Language (Second …
The XHTML family is designed to accommodate these extensions through XHTML modules and techniques for developing new XHTML-conforming modules (described in the XHTML Modularization specification). These modules will permit the combination of existing and new feature sets when developing content and when designing new user agents.
XHTML ™ 1.0: The Extensible HyperText Markup Language
Jan 26, 2000 · XHTML is a family of current and future document types and modules that reproduce, subset, and extend HTML 4 . XHTML family document types are XML based, and ultimately are designed to work in conjunction with XML-based user agents.
XHTML™ 1.1 - Module-based XHTML - Second Edition - World …
Nov 23, 2010 · This specification defines an XHTML document type that is based upon the module framework and modules defined in XHTML Modularization .
XHTML™ 2.0 - World Wide Web Consortium (W3C)
Dec 16, 2010 · XHTML 2 is a general-purpose markup language designed to represent documents for a wide range of purposes across the World Wide Web. To this end it does not attempt to be all things to all people, supplying every possible markup idiom, but to supply a generally useful set of elements.
XHTML namespace - World Wide Web Consortium (W3C)
Sep 7, 2016 · The namespace name http://www.w3.org/1999/xhtml is intended for use in various specifications such as: Recommendations: HTML 5: A vocabulary and associated APIs for HTML and XHTML
XHTML 1.0 - What is XHTML? - World Wide Web Consortium (W3C)
XHTML is a family of current and future document types and modules that reproduce, subset, and extend HTML 4 . XHTML family document types are XML based, and ultimately are designed to work in conjunction with XML-based user agents.
XHTML Frequently Answered Questions - World Wide Web …
Jul 21, 2004 · XHTML is an XML format; this means that strictly speaking it should be sent with an XML-related media type (application/xhtml+xml, application/xml, or text/xml). However XHTML 1.0 was carefully designed so that with care it would also work on legacy HTML user agents as well.
XHTML ™ Basic 1.1 - Second Edition - World Wide Web …
Nov 23, 2010 · For example, if you are using XHTML Basic 1.1 directly, use the public identifier in the DOCTYPE declaration, with the namespace declaration on the document element to identify the default namespace: <?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/MarkUp/DTD/xhtml-basic11.dtd" > <html xmlns="http ...
Recommended list of Doctype declarations - World Wide Web …
Jul 1, 2016 · <!DOCTYPE svg:svg PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd"> Optional doctype declarations Beyond the specificities of (X)HTML processing, Doctype declarations in XML languages are only useful to declare named entities and to facilitate the validation of ...
The W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as RSS/Atom feeds or CSS stylesheets , MobileOK content , or to find broken links , there are other validators and tools available.