标签： javascript css twitter-bootstrap backbone.js twitter-bootstrap-2
在bootstrap.3 [accordion]中，即使应用[css] z-index属性，按钮下拉内容也隐藏在手风琴中。这个模板是从骨干网渲染的。
https://s3-ap-southeast-1.amazonaws.com/uploads-ap.hipchat.com/31869/595252/xt2tIhUVljz1N6R/Screen%20Shot%202014-07-25%20at%2012.32.17%20PM.png
