body			{background-image:url(/img/bg.jpg); padding:0; margin:0px}
.grid 			{position: absolute; top: 50%; left: 50%; right:50%; width: 777px; height:616px; margin-top: -308px; margin-left:-388px;}
.nav			{background-color:#EEEEEE; width:777px}
.hidden			{display:none;}