html,
body,
#game {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #07100e;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  font-family: Arial, Helvetica, sans-serif;
}

canvas {
  display: block;
}