XHTML [SEP] based on
XHTML
eXtensible HyperText Markup Language (XHTML) is part of the family of XML markup languages. It mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
While HTML, prior to HTML5, was defined as an application of Standard Generalized Markup Language (SGML), a flexible markup language framework, XHTML is an application of XML, a more restrictive subset of SGML. XHTML documents are well-formed and may therefore be parsed using standard XML
in XHTML version 1.0 became a World Wide Web Consortium (W3C) Recommendation on 14 October 2008.
The current recommendation is RDFa+XHTML version 1.1, which became a W3C Recommendation on 7 June 2012 and was updated with a ”Second Edition” on 22 August 2013 and a ”Third Edition” on 17 March 2015.
Version 1.1 is based on XHTML™ 1.1 - Module-based XHTML - Second Edition. Version 1.0 was based on the first edition.
Overview.
Conventional Web documents contain large amounts of structured