* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #0a0810;
}

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

canvas {
  /* Sin suavizado en ningun navegador: los pixeles se ven cuadrados. */
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  -ms-interpolation-mode: nearest-neighbor;

  max-width: 100%;
  max-height: 100%;
  background: #0a0810;
  box-shadow: 0 0 0 2px #241c30, 0 12px 40px rgba(0, 0, 0, .7);
}