body{
	font-family: 'Tahoma';
	background-image: url("/img/fondosesion.jpg");
	background-position: center center;
	  background-repeat: no-repeat;
	  background-attachment: fixed;
	  background-size: cover;
}
.sesiondiv{
	 position: absolute;
    top:20%;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    opacity: 0.9;
    background: transparent;
}