I have a legend containing a button that I pull-right. Unfortunately, the button is too high. Please see a fiddle here.
<div class="container">
<div class="row pane" id="statistics-pane" style="">
<legend>Network<span class="btn btn-mini pull-right">Test</span>
</legend>
</div>
</div>
I would separate the pull-right class from your button, and wrap in a div, like