body {
    background-color: white;
  
    /* leave it to hide the scrollbars */
    overflow: hidden;
    margin: 0
    width: 100%;
    height: 100%;
  
    margin: 0;
    padding: 0;
  
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  canvas {
    max-width: 100%;
    max-height: 100%;
  
    margin: auto;
  
    overflow: auto;
    object-fit: contain;
  
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
  }
  
    overflow: hidden;
  }