New nav width fix

Since we have restructured our nav (making it shorter) a css bug creeped in. This change fixes it.

![screen shot 2014-07-10 at 17 14 26](https://cloud.githubusercontent.com/assets/1492162/3541682/bb25513c-084e-11e4-8bd3-6d1c88b90225.png)
![screen shot 2014-07-10 at 17 34 06](https://cloud.githubusercontent.com/assets/1492162/3541822/0ab4423e-0850-11e4-8b78-80446227b7d4.png)