   <a class="nav-link active" href="#" data-toggle="popover" data-trigger="hover" data-placement="top" data-title="Primary color" data-content="Links and 'active' elements always use the primary color.">Active</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="#">Link</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="#">Link</a>
                    </li>
            