html,
body,
#game-container {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #101820;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

canvas {
  display: block;
  margin: 0 auto;
}