title: Accordion not closing other open divs
body: <p>I have done research and to my knowledge data-target is what i need to close down the div, if the other open. In other words I need to open one div at a time. But i think i am unable to do that or cannot make sense on how to open one accordion at a time. Here is my <a href="http://codepen.io/codearts/pen/MJVwyB?editors=1000#0" rel="nofollow noreferrer">code</a></p>
  
  <pre><code> &lt;a role="button" 
   data-toggle="collapse" 
   data-parent="#accordion" 
   href="#collapseOne" 
   aria-expanded="true"
   aria-controls="collapseOne"&gt;
  </code></pre>