.whatsapp-btn {
    background-color: #25d366; /* WhatsApp Green */
    color: white;
    border-radius: 50px;
    padding: 10px 10px;
    font-size: 12px;
    text-align: center;
    text-decoration: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: inline-block;
    cursor: pointer;
}
.whatsapp-btn i {
    font-size: 20px;
}