.whatsapp {
    position:fixed;
  width:60px;
  height:60px;
  bottom:40px;
  left:40px;
  background-color:#25d366;
  color:#FFF;
  border-radius:50px;
  text-align:center;
  font-size:30px;
  z-index:100;
  }
  
  .whatsapp-icon {
    margin-top:13px;
  }