body {
    height: 100%;
    min-height: 100%;
    margin: 0;
    padding: 0;
  }

  canvas {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    max-width: 100%;
    max-height: 100%;
    object-fit: scale-down;
    filter: drop-shadow(0.3rem 0.3rem 0.3rem rgba(0, 0, 0, 0.43));
    z-index: 100;
  }