#whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
    background-color: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,.3);
    z-index: 9999;
    transition: transform .3s ease;
}

#whatsapp-float img {
    width: 34px;
    height: 34px;
}

#whatsapp-float:hover {
    transform: scale(1.1);
}