html, body {
  margin: 0;
  height: 100%;
  background: #0b0a08;
  overscroll-behavior: none;
}

#wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

#game {
  width: min(100vw, calc(100vh * 9 / 16));
  height: auto;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  background: #15110c;
}