Chrome Version 48.0.2564.82 Ubuntu 14.04 (64-bit)
Firefox looks fine...
In the Chrome computed rules, I can uncheck app.css img { height: auto; } the images go back almost to normal (some a little short).. In Firefox, unchecking img height auto goes from just right to making the a few images a little short (like in chrome). Maybe the divs that hold the images have something off about their css.