@charset "utf-8";
/* CSS Document */
video {display: block;} /* For browsers < IE 9 */

video#bgvid { 
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -100;
    -ms-transform: translateX(-50%) translateY(-50%);
    -moz-transform: translateX(-50%) translateY(-50%);
    -webkit-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
    background: url() no-repeat; /* put image url here */
    background-size: cover; 
}

@media screen and (max-device-width: 800px) {
    html {
         background: url() #000 no-repeat center center fixed; /* put image url here */
    }
    #bgvid {
        display: none;
    }
}