Notice
that the xhtml tags travel in pairs, an opening and a closing tag: <html>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
<html>
<head>
<title> basic xhtml page
structure </title>
</head>
<body>
</body>
</html>