body {
    margin: 0;
    background-color: black;
    height: 100%;
  }
  
  .container {
    width: 100vw;
    height: 56.25vw; /* 100/56.25 = 1.778 */
    background: black;
    max-height: 100vh;
    max-width: 177.78vh; /* 16/9 = 1.778 */
    margin: auto;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    overflow: hidden;
  }
  .game {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
    /* Pin the Ruffle stage to its own GPU layer so the SWF is composited at
       the monitor refresh rate instead of being repainted on every tick. */
    transform: translateZ(0);
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    contain: layout paint;
  }
  .game ruffle-player {
    image-rendering: auto;
    transform: translateZ(0);
    will-change: transform;
  }
  
  .loading-anim {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  
  .gamepad {
    position: absolute;
    bottom: -20%;
    left: 0;
    z-index: 11;
    transition: bottom 0.5s ease-in-out;
    transition-delay: 0.5s;
  }
  
  .rotate-screen {
    position: absolute;
    background: rgba(0, 0, 0, 1);
    max-height: 100%;
    width: 100%;
    text-align: center;
    display: none;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
  }