html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #1a1a2e;
  overflow: hidden;
  font-family: 'Courier New', Courier, monospace;
  color: #e0e0e0;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}