video#bgvid {

position: fixed;

top: 50%;

left: 50%;

min-width: 100%;

min-height: 100%;

width: auto;

height: auto;

z-index: -100;

-webkit-transform: translateX(-50%) translateY(-50%);

transform: translateX(-50%) translateY(-50%);

background: url(../img/vreplacebg.jpg) no-repeat;

background-size: cover;

}
video { display: block; }