html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #04060e;
  overflow: hidden;
}

#game {
  display: block;
  position: fixed;
  inset: 0;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}