It looks like there are display issues on IE7. Analytics are showing that some people still use IE7, but I don't know how much additional work it would be to make it work there.

![screen shot 2014-04-16 at 15 44 39](https://cloud.githubusercontent.com/assets/109850/2721657/c38c3a0c-c57d-11e3-987b-de1995a76a52.png)