body {
    background: black;
}

#c {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
   	width:100%;
  	height:100%;
}

#video {
    position: absolute;
    top: 100px;
    left: 100px;
    border:5px solid #000;
  	width:200px;
  	z-index:200;
  	display:none;
}