Extensible HyperText Markup Language definition hypertext, standard, World-Wide Web
(XHTML) A reformulation of HTML
4.01 in XML
. Being XML means that XHTML can be viewed, edited, and validated with standard XML tools. At the same time, it operates as well as or better than HTML 4 in existing HTML 4 conforming user agents.
The most important change is that all elements must be terminated, either with a closing tag or using the
shorthand. So, instead of input type=submit
you would write input type="submit" /
The space before the "/" is required by some older browsers. Other differences are that tag and attribute names should be lower case and all attributes should be quoted.
XHTML Home (http://w3.org/TR/xhtml1/).
Quick Summary (http://technorealm.co.uk/design/html-to-xhtml-conversions.html)
Latest version: 1.0 Second Edition 2002-08-01, as of 2004-03-16.