.box {
    display: none;
    transform: rotate(-30deg);
    text-align: center;
    bottom: 50px;
    right: 30px;
    z-index: 99;
    position: fixed;
  }

  .box {
    transition: 1s;
  }

  .box:hover {
    transform: rotate(0deg);
    cursor: pointer;
  }