body {
  width: 100%;
  height: 100%;
  margin: 0%;
  padding: 0%;
  overflow: hidden;
  background-color: black;
  user-select: none;
  touch-action: none;
}

#canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}