Codepen link: http://codepen.io/DustyShap/full/yamRZK/
(Ignore the search button, I am mainly concerned with results displayed within it's parent element of #results_container).
On the actual app, results will be generated based on a search term,
I have the overflow set to "scroll", but as you can see, the bottom result still overflows. What gives?
The unwanted "bottom result still overflows" seems to be due to the height: 100%; CSS definition for the #wrapper div.
If you remove "height: 100%; from #wrapper, I think you'll see the results you were looking for.
Also, notice that the #wrapper div expands and collapses as the browser's display is expanded and collapsed. Once the height: 100%; is removed from #wrapper, the #wrapper height does not change.