/*html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}
canvas { display: block; }*/


html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}