.icon {
    position: fixed;
    bottom: 20px;
    right: 30px;
    font-size: 30px;
    background-color: #01e675;
    color: #ffffff;
    border-radius: 50%;
    padding: 3px;
    width: 50px;
    height: 50px;
    text-align: center;
    text-decoration: none;
    z-index: 100;
    box-shadow: 2px 2px 2px #c0bdbd;
  }
  
  .icon .fab{
    padding-top: 9px;
  }
  
  .icon:hover{
    background-color: #fff;
    color: #029e3b;
    font-weight: 900;
    box-shadow: 2px 2px 20px #5fe690;
  }