.professional-megamenu {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,.15);
    padding: 20px;
}

.professional-megamenu a {
    color: #004b8d;
    text-decoration: none;
    display: block;
    padding: 10px 15px;
}

.professional-megamenu a:hover {
    background: #f4f7fb;
    color: #0077cc;
}