.navbar-nav .nav-link {
    color: #fff;
    z-index:4000;
    color:red;
}

.dropend .dropdown-toggle {
    color: salmon;
    margin-left: 1em;
}

.dropdown-item:hover {
    background-color: lightsalmon;
    color: #fff;
}

.dropdown .dropdown-menu {
    display: none;
}

.dropdown:hover > .dropdown-menu,
.dropend:hover > .dropdown-menu {
    display: block;
    margin-top: 0.125em;
    margin-left: 0.125em;
}

@media screen and (min-width: 769px) {
    .dropend:hover > .dropdown-menu {
        position: absolute;
        top: 0;
        left: 100%;
    }

    .dropend .dropdown-toggle {
        margin-left: 0.5em;
    }
}
@media (min-width: 992px) {
    .navbar-expand-lg .navbar-collapse { 
        border-bottom: 1px solid #dedede;
    }
}