*{
	margin:0px;
	padding: 0px;
}

div#desc
{
	width: 1348px;
    height: 270px;
    border: 1px;
    background-color: #C0E7DF;
}
div#derecha{
	width: 455px;
	height: 250px;
	border: 1px;
	float: left;
	background-color: #C0E7DF;
}
div#centro{
	width: 425px;
	height: 250px;
	border: 1px;
	float: left;
	background-color: #C0E7DF;
}
div#izquierda{
	width: 465px;
	height: 250px;
	border: 1px;
	float: left;
	background-color: #C0E7DF;
}



body{width:100%;height: 1000px; margin:auto;min-width:600px;max-width:4000px;}