Add important to hiding images with cutouts

Before:
![screen shot 2014-10-15 at 18 00 49](https://cloud.githubusercontent.com/assets/1607666/4649657/af967ef6-548c-11e4-87ac-6d4bbd13dd56.png)

After:
![screen shot 2014-10-15 at 18 00 25](https://cloud.githubusercontent.com/assets/1607666/4649660/b31ec1e6-548c-11e4-8f61-52dca93fb680.png)