<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
<!--
*{
margin:0;
padding:0;
}
header{
background:#090;
font-weight:bold;
position:absolute;
top:10px;
}
footer{
background:#f90;
font-weight:bold;
position:absolute;
bottom:10px;
}
-->
</style>
</head>
<body>
<header>这里是顶部</header>
<footer>这里是尾部</footer>
</div>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns:layout>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>自定义html标签</title>
<style type="text/css">
<!--
*{
margin:0;
padding:0;
}
layout\:header{
background:#090;
font-weight:bold;
position:absolute;
top:10px;
}
layout\:footer{
background:#f90;
font-weight:bold;
position:absolute;
bottom:10px;
}
-->
</style>
</head>
<body>
<layout:header>这里是顶部</layout:header>
<layout:footer>这里是尾部</layout:footer>
</body>
</html> 
