ul.nav {
    margin: 2em 2em 0 0;
    padding: 0;
    list-style: none;
    z-index: 100;
}

ul.nav li {
    display: inline-block;
    margin-right: 1em;
}

ul.nav a {
    color: #00f;
    font-weight: bold;
    text-decoration: none;
}