.navbar-brand img {
    width: 80px;
}

.navbar-nav {
    align-items: center;
}

.navbar .navbar-nav .nav-link {
    color: #fff;
    font-size: 1.1em;
    padding: 0.5em 1em;
}

@media screen and (min-width: 768px) {
    .navbar-brand img {
        width: 100px;
    }

    .navbar-brand {
        margin-right: 0;
        padding: 0 1em;
    }
}