body {
  margin: 0;
  padding: 0;
  background-color: #202020;
}

canvas {
  display: block;
  border: 0;
  padding: 0;
  margin: 4rem auto;
  width: 256px;
  height: 256px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: none !important;
}

@media (min-width: 612px) {
  canvas {
    width: 512px;
    height: 512px;
  }
}

@media (min-width: 868px) {
  canvas {
    width: 768px;
    height: 768px;
  }
}