.principal {
	position:absolute;
	width:790px;
	height:430px;
	z-index:0;
	layer-background-color: #0066CC;
	border: 1px none #000000;
	left: 50%;
	top: 50%;
	margin-top: -215px;
	margin-left: -395px;
	background-color: #CCCCCC;
}
body {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 11px;
	font-weight: normal;
	color: #FFFFFF;
	background-color: #000000;
}