s4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-group"></i><span>fa-group</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-hdd-o"></i><span>fa-hdd-o</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-headphones"></i><span>fa-headphones</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-heart"></i><span>fa-he