@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.whatsapp-float{z-index:1000;position:fixed;bottom:30px;right:20px}.whatsapp-float img{border-radius:50%;width:65px;height:65px;transition:transform .3s;animation:2s ease-in-out infinite pulse;box-shadow:0 2px 5px rgba(0,0,0,.3)}.whatsapp-float img:hover{transform:scale(1.2)}