.why{
    padding-bottom: 20px;
  }
  
  .whatsapp-float {
    width: 70px;
    height: 70px;
    color: white;
    position: fixed;
    float: left;
    margin-left: 5px;
    text-align: center;
    left: 0.5em;
    color: white;
    font-size: 40px;
    bottom: 0.5em;
    margin-bottom: 10px;
    z-index: 999;
  }
  @media (max-width: 900px) {
  .whatsapp-float {
      right: 0.2em;
      margin-bottom: 50px;
  }
  }