        <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-folder-o"></i><span>fa-folder-o</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-folder-open"></i><span>fa-folder-open</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-folder-open-o"></i><span>fa-folder-open-o</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 