.navbar{
    background-color: #2E8B57;
}
.navbar-brand {
    margin-right: 0;
}
@media screen and (min-width: 768px) {
    .navbar-brand img {
        width: 100px;
    }
    .navbar .container-fluid {
        flex-direction: column;
    }
    .navbar .navbar-nav .nav-item {
        padding: 0.5em 1em;
    }
    .navbar-nav {
        border-bottom: 2px solid #fff;
    }
}

.navbar .navbar-nav .nav-link {
    color: #fff;
    font-size: 1.1em;
}
.navbar .navbar-nav {
    border-top: 2px solid #fff;
    margin-top: 0.5em;
}