body {
  /* Allow canvas to hit the edges of the browser viewport. */
  margin: 0;
  background:black;
}


canvas {
  margin: auto;
  /* Hide the gap for font descenders. */
  display: block;
  border-radius:10px;
  -webkit-filter:brightness(0.85) sepia(20%) ;

  image-rendering: pixelated !important;
}