body {
	background-color: #000;
	margin-left: 0px;
	margin-top: 20px;
	margin-right: 0px;
	margin-bottom: 0px;
}#contenedor {
	margin:auto;
	position:absolute;
	top: 2px;
	left: 50%;
	margin-top: 0px;
	margin-left: -630px;
}