html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #0a0a0f;
  overflow: hidden;
}

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

#game {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: none;
  /* scaled via JS to fit window at integer multiples */
  background: #000;
  box-shadow: 0 0 60px rgba(80, 40, 120, 0.35);
}