.left{ width:200px; height:600px; background:#ccc;position:absolute; left:0; top:0}
.main{ height:600px; position:absolute;left:210px;right:310px; background:#9CF}
.right{ height:600px; width:300px; position:absolute; top:0; right:0; background:#FCC;}
.main{ height:600px; position:absolute;left:210px;right:310px; background:#9CF}
.right{ height:600px; width:300px; position:absolute; top:0; right:0; background:#FCC;}