html, body {
  touch-action: none;
}

body {
  margin: 0;
  padding: 0;
  background-color: #fff;
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  user-select: none;
  -webkit-user-select: none;
}