<style type="text/css">
.left{ width:200px; height:600px; background:#ccc; position:absolute; left:0; top:0}
.main{ height:600px; margin:0 310px 0 210px; background:#9CF}
.right{ height:600px; width:300px; position:absolute; top:0; right:0; background:#FCC;}
</style>
.left{ width:200px; height:600px; background:#ccc; position:absolute; left:0; top:0}
.main{ height:600px; margin:0 310px 0 210px; background:#9CF}
.right{ height:600px; width:300px; position:absolute; top:0; right:0; background:#FCC;}
</style>
<style type="text/css">
body{ margin:0; padding:0; font-size:30px; font-weight:bold}
div{line-height:50px}
.main{ width:1000px; height:600px; margin:0 auto}
.left{ width:300px; height:600px; background:#ccc; float:left}
.right{ width:660px; height:600px; background:#FCC; float:right}
</style>
body{ margin:0; padding:0; font-size:30px; font-weight:bold}
div{line-height:50px}
.main{ width:1000px; height:600px; margin:0 auto}
.left{ width:300px; height:600px; background:#ccc; float:left}
.right{ width:660px; height:600px; background:#FCC; float:right}
</style>