我正在尝试使用twitter bootstrap的affix插件,但我无法弄清楚如何在父容器中约束它,我创建了以下示例来显示我的问题：
问题演示：http://www.codeply.com/go/DvcRXkeFZa
<div class="container">
<div class="row">
<div class="col-md-3 column">
<ul id="sidebar" class="well nav nav-stacked" data-spy="affix" data-offset-top="130">
<li><a href="#software"><b>Software</b></a></li>
<li><a href="#features">Features</a></li>
<li><a href="#benefits">Benefits</a></li>
<li><a href="#costs">Costs</a></li>
</ul>
</div>
<div class="col-md-9 column">
<h1>Blah,blah,blah</h1>
<hr>
<a class="anchor3" id="top" name="software"></a>
<p>
content here that scrolls...
</p>
</div>
</div>
</div>
解决方法
来自Bootstrap文档(
http://getbootstrap.com/2.3.2/javascript.html#affix)..
Heads up! You must manage the position of a pinned element and the
behavior of its immediate parent. Position is controlled by affix,
affix-top,and affix-bottom. Remember to check for a potentially
collapsed parent when the affix kicks in as it’s removing content from
the normal flow of the page.
所以你需要一些CSS for affix来设置元素固定时的宽度.如：
#sidebar.affix {
position: fixed;
top: 0;
width:225px;
}
Bootply演示：http://bootply.com/73864
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