@media screen{
#navCabecera{
	margin: 0;
	text-align: right;
	background:#FFF url(../imagenes/estu_estu.jpg) no-repeat left bottom;	
}
.cajapostgrado
{
	font-size: 1em;
	font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;	
}
}