.whatsapp-fixed{position:fixed;bottom:40px;right:0;width:60px;height:60px;z-index:9999;transition:transform .3s ease}.whatsapp-fixed img{width:100%;height:auto;filter:drop-shadow(2px 4px 6px rgba(0,0,0,.2))}.whatsapp-fixed:hover{transform:scale(1.1)}