请大神帮忙，我改好了，为什么还会跳转到以前的源码

</ul>
                <div style="clear"></div>
                <div id="ctl00_ContentConn_PageInfo" class="fenye"> <li>首页</li>
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<li><select name='sldd' style='width:36px' onchange='location.href=this.options[this.selectedIndex].value;'>
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</div>

改成

<div style="flex"></div>

<div id="ctl00_ContentConn_PageInfo" class="fenye" style="display:flex">

没过几天，又成原来的那样

在自己的css里面重写

.fenye{

display:flex !important

}