/* box_scrollup start */
.box_scrollup a {
    border-radius: 50%;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
    cursor: pointer;
    display: none;
    height: 3rem;
    width: 3rem;
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 9999; }
    .box_scrollup a:hover {
      opacity: 1; }
  
  .box_scrollup i {
    font-size: 16px;
    position: absolute;
    left: 16px;
    top: 16px; }
/* box_scrollup end */