.whatsapp-float{
position:fixed;
bottom:20px;
right:20px;
background:#25D366;
color:white;
padding:14px 18px;
border-radius:50px;
font-weight:bold;
text-decoration:none;
box-shadow:0 8px 20px rgba(0,0,0,0.2);
z-index:9999;
}
.whatsapp-float:hover{
opacity:0.9;
}