我浮动我的无序列表元素的那一刻......背景颜色失败了。为什么?
<style type="text/css">
.bkgrd-blue { background-color: #094AB2; }
.application-bar { color: #FFFFFF; }
.application-bar ul { }
.application-bar ul.control-bar { list-style: none outside none; margin: 0; overflow: visible; padding: 0; }
.application-bar ul.control-bar.branding { float: left;}
</style>
<div class="application-bar bkgrd-blue">
<ul class="control-bar">
<li>
This is working!
</li>
</ul>
</div>
<div class="application-bar bkgrd-blue">
<ul class="control-bar branding">
<li>
The moment I float this...it fails! Why?
</li>
</ul>
</div>