html, body {
  margin: 0;
  height: 100%;
  background: #05070d;
  overflow: hidden;
}
#wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
#stage {
  position: relative;
  width: min(100vw, 177.78vh);
  aspect-ratio: 16 / 9;
}
#stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: default;
}
#game { z-index: 2; }
#gl { z-index: 1; }