下拉菜单位于窗口区域外 - Bootstrap

Question

Bootstrap Twitter的下拉菜单在底部打开,因为在窗口区域之外不会出现.我需要在顶部展示.有财产强制出现在顶部？

Answer 1

要使菜单上升,只需将.dropup类添加到带有.btn-group类的div上.

<div class="btn-group dropup">
  <a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
    Action
    <span class="caret"></span>
  </a>
  <ul class="dropdown-menu">
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
  </ul>
</div>

完整信息:

http://twitter.github.com/bootstrap/components.html#buttonDropdowns