             <li><a href="chart.html">Chart库</a></li>
                    <li class="has-sub">
                        <a href="javascript:void(0);"><span>导航选中演示</span><i class="fa fa-caret-right fa-fw pull-right"></i></a>
                        <ul class="sub-menu">
                            <li><a href="left1.html"><i class="fa fa-circle-o fa-fw"></i>&nbsp;left1</a></li>
                            <li><a href="left2.html"><i class="fa fa-circle-o fa-fw"></i>&nbsp;left2</a></li>
         