* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  background: #161821;
  overflow: hidden;
}

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

#game {
  width: min(100vw, 160vh);
  aspect-ratio: 1024 / 640;
  height: auto;
  max-height: 100vh;
  background: #000;
  border-radius: 8px;
  box-shadow: 0 0 70px rgba(0, 0, 0, 0.65);
}