.wf-whatsapp-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    padding: 10px;
    border-radius: 50%;
    z-index: 9999;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.wf-whatsapp-button:hover {
    background-color: #1ebe5d;
}