html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  background: url(nudes_bg.png);
  image-rendering: pixelated;
  
  animation-name: bg-scroll;
  animation-iteration-count: infinite;
  animation-duration: 5s;
  animation-timing-function: linear;
}

#nudes {
  image-rendering: pixelated;
  max-height: 90%;
  max-width: 90%;
}

@keyframes bg-scroll {
  from {background-position: 0 0;}
  to {background-position: 128px 128px;}
}