Secondary Nav: Centered

<nav class="nv-s nv-s--c">
    <input type="checkbox" id="nv-s-tr" class="nv-s-tr" aria-hidden="true">

    <ul class="nv-s-l">
        <li class="nv-s-l-i">
            <label for="nv-s-tr" class="nv-s-l-b" type="button">Navigation</label>
        </li>

        <li class="nv-s-l-i"><a href="https://311.boston.gov/" title="Report a Problem" class="nv-s-l-a nv-s-l-a--active">Report a Problem</a></li>
        <li class="nv-s-l-i"><a href="https://311.boston.gov/lookup" title="Case Look Up" class="nv-s-l-a">Case Look Up</a></li>
        <li class="nv-s-l-i"><a href="https://311.boston.gov/onthego" title="311 on the Go" class="nv-s-l-a">311 on the Go</a></li>
        <li class="nv-s-l-i"><a href="https://311.boston.gov/faq" title="FAQ" class="nv-s-l-a">FAQ</a></li>
    </ul>
</nav>