500.html">500</a>
              </li>

              <!-- BEGIN: mail -->
              <li>
                <a href="#" class="has-arrow">
                  <span class="nav-icon"><i class="fa fa-fw fa-envelope-o"></i></span>
                  <span class="nav-title">Mail</span>
                </a>
                <ul class="nav nav-sub nav-stacked">
                  <li>
                    <a href="app-mail-inbox.html">Inbox</a>
                  </li>
                  <li>
                    <a href