body {
margin:
  0;
position:
  relative;
min-height:
  100vh;
background-color:
  black;
  image-rendering: pixelated;
    image-rendering: crisp-edges;
    image-rendering: -moz-crisp-edges;
    image-rendering: -o-crisp-edges;
    -ms-interpolation-mode: nearest-neighbor;
    -webkit-font-smoothing: none;
}
canvas {
position:
  absolute;
left:
  50%;
top:
  50%;
transform:
  translate(-50%, -50%);
max-width:
  100%;
max-height:
  100%;
object-fit:
  scale-down;
}