body {
  background-color: #232323;

  /* leave it to hide the scrollbars */
  display: flex;
  overflow: hidden;
  height: 100vh;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  font-size: 0;
}

canvas {
  /* border: 20px solid white; */
}