.btn-whatsapp{position:fixed;width:60px;height:60px;bottom:40px;right:40px;background-color:#25d366;color:white;border-radius:50px;text-align:center;box-shadow:2px 2px 3px #999;z-index:1000;display:flex;justify-content:center;align-items:center;transition:transform 0.3s ease}.btn-whatsapp img{width:35px;height:35px}.btn-whatsapp:hover{background-color:#128c7e;transform:scale(1.1)}