dejo del codigo:
Código HTML :
<!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=UTF-8" />
<title>nuevo</title>
<style type="text/css">
#prin{
position:relative;
width:600px;
height:auto;
}
#lateral{
position:absolute;
width:300px;
height:200px;
background-color:#CCC;
left:50px;
}
</style>
</head>
<body>
<div id="prin">
<div id="lateral">
noticias
</div>
</div>
</body>
</html> 
