.whatsapp-icon {
    display: none;
    width: 64px;
    height: 64px;
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 10001;
}
.whatsapp-icon img {
    width: 100%;
    height: 100%;
}

@media (max-width:600px) {
    .whatsapp-icon {
        display: block;
    }
}