HTML is changing so fast it's almost impossible to keep up with developments. XHTML is HTML rewritten in XML; it provides the precision of XML while retaining the flexibility of HTML. HTML & XHTML: The Definitive Guide, 4th Edition, brings it all together. It's the most comprehensive book available on HTML and XHTML today. It covers Netscape Navigator , Internet Explorer , HTML , XHTML , JavaScript, Style sheets, Layers, and all of the features supported by the popular web browsers
