body {
    margin: 0;
    background: #000;
    color: #fff;
	font-size:20px;
	overflow-x: hidden;
}

.bg-vid {
    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-size: cover;
    -webkit-transition: 1s opacity;
    transition: 1s opacity
}