body {
  margin: 0;
}
html,
body {
  height: 100%;
  overflow: hidden;
  position: fixed;
  width: 100%;
}
canvas {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw !important;
  height: 100vh !important;
  /* Safari iOS canvas fix */
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
}