.menu-principale .navbar-nav {
    flex-direction: row;
}

.menu-principale .nav-link {
    color: #303030;
    height: 100% !important;
    padding: 10px 15px;
}

.menu-principale .nav-link.is-active {
    border-bottom: 1px solid #303030;
    padding-bottom: 5px;
}

.menu-principale .nav-link:hover {
    background-color: #595959 !important;
    color: #fff;
}