title: How can I add css classes to specific symfony2 form choices?
body: <p>I could do this with Javascript, but I was wondering if I could add a css class to specific symfony2 form choices (not the choice field itself, but the individual choices).</p>
  
  <p>For example I want to apply different css styles to individual 'option' tags inside a 'select'. I could only find a way to add a class to the  tag.</p>
  
  <p>Thanks in advance.</p>