html, body {
	margin: 0;
	padding: 0;
	minwidth: 800px;
	minheight: 650px;
}

div#box {
	position: absolute;
	left: 50%;
	top: 20px;
	margin: 0 0 0 -400px;
	background: black;
}

div#container {
	width: 800px;
	margin: 0;
}