.scroll-to-top {
    z-index: 99999;
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    display: none;
    /* width: 2.75rem; */
    /* height: 2.75rem; */
    text-align: center;
    color: #fff;
    background: rgba(90, 92, 105, 0.5);
    /* line-height: 46px; */
  }
  
  .scroll-to-top:focus, .scroll-to-top:hover {
    color: white;
  }
  
  .scroll-to-top:hover {
    background: #5a5c69;
  }
  
  .scroll-to-top i {
    font-weight: 800;
  }