* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  background: #14101c;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Courier New", monospace;
}

#frame {
  padding: 10px;
  background: #241d33;
  border: 4px solid #4a3d66;
  border-radius: 8px;
  box-shadow: 0 0 60px rgba(120, 80, 200, 0.25);
}

canvas {
  display: block;
  image-rendering: pixelated;
  max-width: 95vw;
  max-height: 90vh;
  background: #0d0a14;
}