body {
    text-align: center;
}

.video {
    margin-left: auto;
    margin-top: 0px;
    margin-right: auto;
    margin-bottom: auto;			
}
		
#volver {
    display: block;
    margin: 25px auto;	
    background: #ffffff url("../img/volver.gif") no-repeat;
    color: #000000;
    width: 86px;
    height: 33px;
}