#robbu-whatsapp-button {
    display: flex;
    position: fixed;
    background: #25d366;
    bottom: 25px;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    box-shadow: 2px 2px 12px rgba(22, 124, 60, .2);
    transition: .4s;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    /* Add a high z-index value */
    pointer-events: auto;
    /* Make sure the button remains clickable */
}


/* Rest of the CSS code remains the same */