.submenu {
    background: #FFFFFF;
    padding-bottom: 30px;
    transition: .3s all ease;
}

.submenu ul li {
    list-style: none;
    border-bottom: 1px solid #efefef !important;
    border-right: 1px solid #efefef !important;
    display: inline-flex;
    width: 20%;
    margin-bottom: 5px;
    margin-right: 5px;
}

.nav-link.text-dark:hover {
    color: #ffae00 !important;
}

.submenu ul li a {
    width: 100%;
}

.submenu ul li a:hover {
    color: #ffae00 !important;
}

/* LG */
@media (min-width: 1250px) {

}

@media (min-width: 1200px) {

}

/* MD */
@media (max-width: 1199px) and (min-width: 992px) {

}

/* SM */
@media (max-width: 991px) and (min-width: 768px) {

}

/* XS */
@media (max-width: 767px) {
    #menu-principal .nav-item {
        text-align: center;
    }

    #navbarCollapse {
        text-align: center;
    }

    .submenu ul {
        padding: 0;
    }

    .submenu ul li {
        display: inline-flex;
        width: 100%;
        text-align: center;
    }
}