.container.section-topnav {
    height: 4.5em;
    display: flex;
    align-items: center;
}

.navbar.navbar-expand-md .navbar-collapse { /* default off (mobile)*/
    display: none;
}
.navbar .navbar-toggler {
    display: none;
}
nav {
    display: none;
}

.navbar .nav-signup {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}