#game {
  height: var(--game-height);
  max-height: 100vh;
  background-color: rgba(128,128,128,0.33);
  border-radius: 10px;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
#game:-webkit-full-screen { width: 100%; height: 100%; }
#game:-moz-full-screen { width: 100%; height: 100%; }
#game:-ms-fullscreen { width: 100%; height: 100%; }
#game:-fullscreen { width: 100%; height: 100%; }
#game.maximized {
  position: fixed !important;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
}