This is me trying to scroll left and right on this code block (animated):

![enter image description here][1]

Here are the still images:

![enter image description here][2]

![enter image description here][3]

This is a copy of the problematic code block, which I first found in [this question][4]

    dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem

The problem appears to be the precise length of the code block (93 chars).

When I resize it to 92 or 94 chars, it is fine:

![enter image description here][5]

![enter image description here][6]

[Screencast on YouTube][7]

My System:

 - Ubuntu 14.04.1 with Chrome 39.0.2171.65 (latest)
 - Zoom levels of 75%, 90%, 100%, 110% (above that it creates a working scrollbar, below it removed the scrollbar entirely)
 - Screen: 1024x1280, 17.1", 43.37cm


  [1]: https://i.sstatic.net/LJ6l9.gif
  [2]: https://i.sstatic.net/adq4P.png
  [3]: https://i.sstatic.net/7aJH4.png
  [4]: https://askubuntu.com/questions/553671
  [5]: https://i.sstatic.net/nUgeJ.png
  [6]: https://i.sstatic.net/yfvsj.png
  [7]: http://youtu.be/gOFdb4_BWb0