I added a gist here with some reformatting because I found it hard to read the code on the author's site:

Thank you. Funny enough, that gist has the same problem on my screen (too much whitespace on either side of a box that I need to horrizontally scroll) - it's just not as bad.

Here's how the site shows up for me: http://imgur.com/CjXRHBC

Grumble.