.whatsapp-button{position:fixed;bottom:20px;right:20px;background-color:#25d366;color:#fff;border-radius:50%;padding:15px;box-shadow:0 4px 10px rgba(0,0,0,.2);transition:transform .3s ease-in-out;z-index:1000}.whatsapp-button:hover{transform:scale(1.1)}.whatsapp-button svg{color:#fff}