title: how to make colorbox responsive
body: <p>I am using colorbox in a responsive website.</p>
  
  <p>I have a request : I wish that Colorbox automatically adjusts itself to the size and orientation of the screen / mobile device : if I change the orientation of the screen / mobile device (ie if I rotate my mobile to adjust horizontal and vertival pictures to the screen size, I wish that Colorbor automatically adjusts itself to the new size / orientation of the screen).
  for now, Colorbox only automatically adjusts itself on load of a new picture (in a slideshow for exemple).</p>
  
  <p>I asked the question in the closed google group :</p>
  
  <p><a href="https://groups.google.com/group/colorbox/browse_thread/thread/85b8bb2d8cb0cc51?hl=fr">https://groups.google.com/group/colorbox/browse_thread/thread/85b8bb2d8cb0cc51?hl=fr</a></p>
  
  <p>I created two feature requests on github :</p>
  
  <p><a href="https://github.com/jackmoore/colorbox/issues/158">https://github.com/jackmoore/colorbox/issues/158</a></p>
  
  <p>but I don't have any response, so I try on Stack Overflow...</p>
  
  <p>Does anyone know if it's possible to get ColorBox to auto-resize based
  on orientation change (maybe with a callback function in a workaround)?</p>
  
  <p>Thanks in advance to any help.</p>