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

body {
  display: flex;
  justify-content:center;
  background: #000;
  font-family: 'Roboto Slab', serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#fixed-bg {
  position: fixed;
  left:50%;
  top:50%;
  transform:translate(-50%, -50%);
  width:100vw;
  height:100vh;
}

canvas {
  position: absolute;
  top:50%;
  left:50%;
  transform:translate(-50%, -50%);
  aspect-ratio: 1;
  width: auto;
  height: 100%;
}
@media (min-aspect-ratio: 1) {
  canvas {
    width: 100%;
    height: auto;
  }
}