@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.15);opacity:0.9}100%{transform:scale(1);opacity:1}}.whatsapp-float{position:fixed;bottom:80px;right:20px;z-index:9999;animation:pulse 2.5s ease-in-out infinite}.whatsapp-float img{width:60px;height:60px;display:block}