html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #eee6d7;
}
#stage {
  position: fixed;
  inset: 0;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}
#stage > canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: crosshair;
}