body{
	background-color:black; overflow:hidden;
}

.enter {

    position: absolute;
    z-index: 4000;
    width: 100%;
    height: 100%;
    bottom: 100px;
}


#video-bg {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    z-index: 1;
    background-size: cover;
}

#video-bg > video {
    position: absolute;
    top: 0;
    left: 0;
    min-width: 100%; 
    min-height: 100%;
    width: auto;
    height: auto; 
}

@supports (object-fit: cover) {
     #video-bg > video {
         top: 0;
         left: 0;
         width: 100%;
         height: 100%;
         object-fit: contain;
     }
 }