html, body {
    height: 100%;
    
  }
  canvas {
    display: block;
  }
  body {
    margin: 0;
    background-color: black;
    display: flex;
    overflow: hidden; /* Hide scrollbars */
  
    /* This centers our sketch horizontally. */
    justify-content: center;
  
    /* This centers our sketch vertically. */
    align-items: center;
  }