.whatsapp-button{position:fixed;bottom:15px;right:15px;margin-bottom: 57px;left:15px;z-index:99;background-color:#4fce5d;border-radius:50px;color:#fff;text-decoration:none;width:50px;height:50px;font-size:30px;display:flex;flex-direction:column;justify-content:center;align-items:center;-webkit-box-shadow:0 0 25px -6px #000;-moz-box-shadow:0 0 25px -6px #000;box-shadow:0 0 25px -6px #000;animation:effect 5s infinite ease-in}@keyframes effect{100%,20%{width:60px;height:60px;font-size:40px}0%,10%{width:60px;height:60px;font-size:35px}5%{width:50px;height:50px;font-size:30px}}