body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  padding: 0;
  background: black;
  margin: 0;
}

canvas {
  width: 100%;
  height: 100%;
}