XHTML is almost identical to HTML 4.01 with only few differences. This is a cleaner and more strict version of HTML 4.01. If you already know HTML then you need to give littel attention to learn this latest variant of HTML. XHTML stands for EXtensible HyperText Markup Language and is the next step in the evolution of the Internet. The XHTML 1.0 is the first document type in the XHTML family. XHTML was developed by the W3C to help web developers make the transition from HTML to XML. By migrating to XHTML today, web developers can enter the XML world with all of its attendant benefits, while still remaining confident in their content's backward and future compatibility. Developers who migrate their content to XHTML 1.0 will realize the following benefits: 1. XHTML documents are XML conforming. As such, they are readily viewed, edited, and validated with standard XML tools. 2. XHTML documents can be written to operate better than they did before in existing browsers as well as in new ...