Introduction to XHTML: Appendix A

Appendix A: Sample Document

Here's a before-and-after scenario showing how a very simple document may be converted from HTML to XHTML.

As HTML 4.01

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
            "http://www.w3.org/TR/REC-html40/loose.dtd">
<HTML LANG=en>
<HEAD>
<TITLE>Every document must have a title</TITLE>
</HEAD>
<BODY>
<H1 ALIGN=center>Very Important Heading</H1>
<P>
Since this is just a sample,<BR>I won't put much text here.
</P>
</BODY>
</HTML>

As XHTML 1.0

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns="http://www.w3.org/1999/xhtml"" xml:lang="en" lang="en">
<head>
<title>Every document must have a title</title>
</head>
<body>
<h1 align="center">Very Important Heading</h1>
<p>
Since this is just a sample,<br />I won't put much text here.
</p>
</body>
</html>