body {
	margin-right: auto;
	width:1024px;
	margin-left: auto;
	color: #ffffff;
	font: 13px/1.5 Helvetica, Arial, 'Liberation Sans', FreeSans, sans-serif;
	background: #403b38;
}
.marron {
	width: 930px;
	position:relative;
	background:#5f5853;
}
.fondo_negro{

   width:802px;
   height:72px;
   background:#403b38;
   position:relative;
   }