具有固定在顶部的导航栏和Bootstro的Bootstrap

我正在使用Bootstrap + Bootstro，但无法使顶部导航栏位于叠加层后面。

http://jsfiddle.net/NJsYw/5/（单击教程）

<div id="wrap">

  <!-- Fixed navbar -->
  <div class="navbar navbar-fixed-top">
    <div class="navbar-inner">
      <div class="container">
        <button type="button" class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
        <a class="brand" href="#">Project name</a>
        <div class="nav-collapse collapse">
          <ul class="nav">
            <li><a href="#" id='tutorial'>Tutorial</a></li>
              </ul>
            </li>
          </ul>
        </div><!--/.nav-collapse -->
      </div>
    </div>
  </div>

  <!-- Begin page content -->
  <div class="container">
    <div class="page-header">
    </div>
    <p class="lead bootstro" data-bootstro-title='Title' data-bootstro-content="Description." data-bootstro-width="400px" data-bootstro-placement='bottom' data-bootstro-step='0'>Pin a fixed-height footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS. A fixed navbar has been added within <code>#wrap</code> with <code>padding-top: 60px;</code> on the <code>.container</code>.</p>
    <p class="bootstro" data-bootstro-title='Title' data-bootstro-content="Description." data-bootstro-width="400px" data-bootstro-placement='bottom' data-bootstro-step='1'>Back to <a href="./sticky-footer.html">the sticky footer</a> minus the navbar.</p>
  </div>

  <div id="push"></div>
</div>

<div id="footer">
  <div class="container">
    <p class="muted credit">Example courtesy <a href="http://martinbean.co.uk">Martin Bean</a> and <a href="http://ryanfait.com/sticky-footer/">Ryan Fait</a>.</p>
  </div>
</div>

看起来这是这里的地址https://github.com/clu3/bootstro.js/issues/15但我不知道如何申请（如果有必要）

谢谢