body {
	background-color: #58595B;
	margin:0 auto;
}
.contenedor{
	position:absolute;
	top: 50%;
	left: 50%;
	width:1000px;
	height:600px;
	margin-left: -500px;
	margin-top: -300px;
}

.contenedor2{
	background-color: #fff;
	width:960px;
	height:560px;
	margin:20px;
	background-image:url(logo_bocusedorargentina_2009.jpg);
	background-position:right bottom;
	background-repeat:no-repeat;
}