- is called
- XHTML
- uses
- XML
- uses namespace
- http://www.w3.org/1999/xhtml (usual prefix: html, xhtml)
XHTML is used for marking up hypertext.
Specifications
XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)
http://www.w3.org/TR/xhtml1
type: W3C Recommendation
date: 2002-08-01
XHTML™ 1.1 - Module-based XHTML - Second Edition
http://www.w3.org/TR/xhtml11/
type: W3C Recommendation
date: 2010-11-23
Links
SelfHTML
http://www.selfhtml.org/
Description: A very good introduction to the Web and HTML. It tells beginners howto do the first steps but it also goes into details. It is not only about XHTML, it provides also valuable information about CSS, XML, Javascript, CGI, Perl, etc. It is suited ideally for someone who wants to become a webmaster. However, it seems to be available only in german and french.
XHTML recommendations
http://www.w3.org/MarkUp/#recommendations
Description: There are many recommendations: For HTML 4.01, XHTML 1.0, XHTML Basic and so on. The W3C is also working on XHTML 2.0.