ertext, standard, World-Wide Web> (XHTML) A reformulation of ef="module.php?name=Lexikon&file=search&eid=1&query=HTML">HTML 4.01 in ef="module.php?name=Lexikon&file=search&eid=1&query=XML">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 e=submit> you would write e="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. ef="http://www.w3.org/TR/xhtml1/">XHTML Start . {Quick Summary (http://www.technorealm.co.uk/design/html-to-xhtml-conversions.html)} Latest version: 1.0 Second edition 2002-08-01, as of 2004-03-16. (2004-03-16)