guardian/frontend — pull request #4345 by ironsidevsquincy (2014-05-21 10:10:43+00:00)
Title: Test using transitions when loading bigger ads 

![transition](https://cloud.githubusercontent.com/assets/74132/3038634/26b19dc6-e0d0-11e3-8fa0-2caa4b5f4fd2.gif)