title: How to create a custom scrollbar on a div (Facebook style)
body: <p>I'm wonder how the custom scrollbar on Facebook has been made.</p>
  
  <p>Is it only css or some javascript as well?</p>
  
  <p>If yes can i have an idea of what the code looks like?</p>
  
  <p><em>This question is specific to Facebook scrollbar style and not how to simply have a custom scrollbar</em></p>