Get started working with Extensible Hypertext Markup Language. XHTML isa language based on HTML, but expressed in well-formed XML. However, XHTML has more to offer than just regularizing tags and characters XHTML can alter the way you approach Web design. This tutorial gives step-by-step instruction for developers familiar withHTMLwhowant to learn how touse XHTML in practical Web sites. Introducing XHTML : This tutorial offers step-by-step instruction for developers familiar with HTML who want to learn how to use XHTML in practical Web sites. XHTML is more than just an XML-compliant variation. It also opens up the first step in advancing from tag soup Web sites to sites that properly separate content from presentation, and thus save time and money in maintenance. The focus of this tutorial will be XHTML 1.1, with the occasional mention of XHTML 2.0. The lessons are built around examples that readers can view and experiment within their favorite browser. In this tutorial you will see many examples of XHTML files. You can find all the files shown herein the zip file, x-xhtml-tutorial-files.zip . In this package, all files start with a prefix indicating the section that discusses them and the order of examples within the section. For example, the names of files from the first example in the third section start with\"eg_3_1\". Files that end with .xhtmlare XHTML. A few of the files have more specialized extensions such as.xslfor XSLT transform files. I do take care to further list the example files in each panel and show how each relates to the other, so if you follow along with the tutorial you should be able to locate and experiment with the examples easily enough