Код:
<!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></title>
****<style type="text/css">
****/*<![CDATA[*/
*****{margin: 0; padding: 0;}
****html, body{height: 100%;}
****
****#content{min-height: 100%;}
***** html #content{height: 100%;}
****
****#main{padding-bottom: 5em;}
****#footer{height: 5em; position: relative; margin-top: -5em; background: #DDD;}
****/*]]>*/
****</style>
</head>
<body>
****<div id="content">
*<div id="main">
*****asd
*****asd
*****asd
*****asd
*****asd
*****asd
*****asd
*****asd
*****asd
*****asd
*****asd
*</div>
****</div>
****<div id="footer">
*asd
****</div>
</body>
</html>