I'm struggling to create a common scrollbar for both the left navigation div and right content div on a simple page, but all my attempts have failed. No matter what I try, the scrollbar only works for the content div. Is there any way to make them share the same scrollbar located on the right side of the page?
Link to Codepen: http://codepen.io/anon/pen/qEMPax
As a beginner in CSS, I can't seem to figure this out on my own. Any help would be greatly appreciated.
Thanks and Regards, Jimmy