nav.navbar.navbar-expand-lg.navbar-dark {
    background-color: black;
    padding: 20px 0px;
}
nav.navbar a.nav-link {
    background-color: #007bff;
    margin-right: 10px;
    border-radius: 14px;
    color: white !important;
    font-weight: bold;
}
nav.navbar a.nav-link:hover {
    background-color: #0148d5;
}