.float{
    position:fixed;
    width:60px;
    height:60px;
    bottom:40px;
    right:40px;
    background-color:#25d366;
    color:#FFF;
    border-radius:50px;
    text-align:center;
    font-size:30px;
    box-shadow: 2px 2px 3px #999;
    z-index:100;
  }
  
  .my-float{
    width:28px;
    height:28px;
    margin-top:16px;
    display:block;
    margin-left:auto;
    margin-right:auto;
  }
  
  .bounce {
      animation: bounce 2s infinite;
  }
  
  @keyframes bounce {
      0%,
      25%,
      50%,
      75%,
      100% {
          transform: translateY(0);
      }
      40% {
          transform: translateY(-20px);
      }
      60% {
          transform: translateY(-12px);
      }
  }