body {
    margin: 0;
    padding: 0;
    background: rgb(10,20,30);
    overflow: hidden;
  }
  canvas,
  body {
    touch-action: none;
    user-select: none;
  }
  #myfullscreen {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    /* background-color: rgb(88, 88, 88); */
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  #myfullscreen canvas {
    object-fit: contain;
    max-height: 100%;
    max-width: 100%;
  }