Little style fix

Fix broken line in default theme:
Before
![2014-06-26 3 48 06](https://cloud.githubusercontent.com/assets/3385598/3393539/627f5c4a-fcc7-11e3-9625-81ae0d9852cd.png)

After
![2014-06-26 3 49 46](https://cloud.githubusercontent.com/assets/3385598/3393540/6a08b628-fcc7-11e3-9cca-6af9d37a7c26.png)