* {
  margin: 0;
  padding: 0;
}

body, html {
  display: block;
  height: 100%;
  background-color: #000000;
}

canvas {
  display: block;
  margin-left: auto;
  margin-right: auto;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  image-rendering: pixelated;
}