<ul class="tabnav el">
    <li class="{{ self == '/shop/admin/delivery/rates.php' ? 'selected' : '' }}">
        <a href="/shop/admin/delivery/rates.php">Rates</a>
    </li>
    <li class="{{ self == '/shop/admin/delivery/manage.zones.php' ? 'selected' : '' }}">
        <a href="/shop/admin/delivery/manage.zones.php">Zones</a>
    </li>
</ul>
