div#nav-parent {
    position: fixed;
    top: 0;
    left: 0;
    margin: auto;
    width: 100%;
    z-index: 9999;
}

nav#nav-top-bar {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: #fff;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    border-bottom: 2px solid #ddd;
    font-size: 1.1em;
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navlink {
    flex: 1;
    display: flex;
    justify-content: center;
}

.navlink a {
    text-align: center;
    margin: 0;
    text-decoration: none;
    padding: 12px 0;
    color: #333;
    display: block;
    width: 100%;
    transition: background-color 200ms ease-in-out, color 200ms ease-in-out;
}

.navlink:hover a {
    background-color: #f0f0f0;
    color: #3f3f3f;
    cursor: pointer;
}

.navlink.active a {
    font-weight: bold;
    color: #3f3f3f;
    border-bottom: 5px solid #3f3f3f;
}