body {
    margin: 0;
    padding: 0;
    display: block;
    width: 10vw;
    height: 10vh;
    overflow: hidden;
    object-fit: contain;
  }

  canvas {
    max-width: 100%;
    max-height: 100%;
    bottom: 0;
    left: 0;
    margin: auto;
    overflow: auto;
    position: fixed;
    z-index: 1;
    right: 0;
    top: 0;
    object-fit: contain;
  }