[bug] theme titles can overflow into the .tabs element

## Demo
![screen shot 2014-10-03 at 3 20 33 pm](https://cloud.githubusercontent.com/assets/1154834/4513279/a75ac9ea-4b4a-11e4-9968-b5725913b28f.png)

## Fixed
![screen shot 2014-10-03 at 3 20 22 pm](https://cloud.githubusercontent.com/assets/1154834/4513280/a9807184-4b4a-11e4-988a-bb2c8c7f7dc9.png)