html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #0f0b08;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

#gameCanvas {
  width: 100vw;
  height: auto;
  max-width: 100vw;
  max-height: 100vh;
  aspect-ratio: 16 / 10;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #0f0b08;
}