/*Credits: CSSpplay */
#box1 {display:block; width:700px; height:550px; position:relative; top:20px; left:0; background:#ccc; border:2px solid #eee; margin:0 auto;}
#box2 {display:block; width:692px; height:542px; position:absolute; top:2px; left:2px; background:#999; border:2px solid #aaa;}
#box3 {display:block; width:684px; height:534px; position:absolute; top:2px; left:2px; background:#777; border:2px solid #888;}
#box4 {display:block; width:690px; height:540px; position:absolute; bottom:0; right:0; background:#000; border-bottom:1px solid #444; border-right:1px solid #444; border-top:1px solid #ccc; border-left:1px solid #ccc; padding:5px;}