html, body {
  touch-action:none;
  content-zooming:none;
  position:absolute;
  margin:0;
  padding:0;
  left:0;
  top:0;
  width:100%;
  height:100%;
  background:#1a1a1a;
  overflow:hidden;
}

#canvas {
  position: absolute;
  left: 50%;
  top: 50%; 
  width: 800px;
  height: 450px;
  margin-left:-250px;
  margin-top:-170px;
  cursor: pointer;
  box-shadow: 0px 0px 80px #000;
  border-radius: 7px;
}

#texture {
	position: absolute;
	visibility: hidden;
}