title: How to add plus minus symbol to a bootstrap accordion
body: <p>I using a bootstrap accordion, where the first panel is always open and the panel which is open gets a class <strong>in</strong> . I'm checking from my jquery code to see if the class contains class <strong>in</strong> it highlights that anchor . But currently all the anchor are highlighted.</p>
  
  <p>I just want the first anchor to get highlighted that is open and rest closed panel should have some different style. </p>
  
  <p>here is the fiddle : <a href="http://www.bootply.com/119422" rel="noreferrer">Fiddle</a></p>
  
  <p>As you can see all the anchor tags are highlighted. I want first anchor to get some different styling. The whole idea is to add plus / minus symbol to the accordion.</p>