ol-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-magnet"></i><span>fa-magnet</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-mail-forward"></i><span>fa-mail-forward</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-mail-reply"></i><span>fa-mail-reply</span></li>
                <li class='layui-col-xs4 layui-col-sm3 layui-col-md2 layui-col-lg1 '><i class="fa fa-mail-reply-all">