<style type="text/css">
body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
	background-color: #333333;
}
#global {
	position:absolute;
	left: 50%;
	top: 50%;
	width: 850px;
	height: 470px;
	margin-top: -235px; /* HALF THE HEIGHT */
	margin-left: -425px; /* HALF THE WIDTH */
	border: 15px solid #cccccc;
	padding: 0;
}
</style>
