<style>
.container{?float:left;
????????position:relative;
????????left:50%}
.container?ul{
????...????
????position:relative;
????left:-50%;}
.container?li{?float:left;display:inline;?...}?
</style><body>
<div?class="container">
????<ul>
????????<li>...</li>??
????</ul>
</div>
</body>父元素.container已經(jīng)設(shè)置了left: 50%，為什么子元素ul，li設(shè)置left: -50%還要加上父元素.container？
能否去掉.container
Werk_Bicth
2016-04-08 17:02:15
