.ho-whatsapp-float {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 999999;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .25);
    transition: transform .2s ease, box-shadow .2s ease;
    text-decoration: none;
}

.ho-whatsapp-float:hover,
.ho-whatsapp-float:focus {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(0, 0, 0, .3);
    color: #fff;
}

@media (max-width: 767px) {
    .ho-whatsapp-float {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
    }
}