body,td,th { font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: #FFF; }
body { margin: 0px auto; text-align:center; width:990px; background: #000; }

.layout { position:absolute; width:990px; height:600px; left:50%; top:50%; margin: -300px 0 0 -495px; }