.video {
  	position: fixed;
  	top: 50%;
  	left: 50%;
  	z-index: 1;
  	min-width: 100%;
  	min-height: 100%;
  	width: auto;
  	height: auto;
  	-webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);  
}