body { margin: 0; padding: 0; width: 760px; }
#container { width: 760px; }
div { border: #000 1px solid; }
#header { width: 760px; float: left; }
#main-holder { width: 600px; float: left; }
#extra { width: 150px; float: right; }
#main { width: 440px; float: right; }
#subnav { width: 150px; float: left; }
#footer { width: 760px; float: left; }