Subtle tab polish

I made a couple small changes to your tabs  – completely personal preference, but I thought I'd throw a pull request your way in case you liked it. I've attached a quick before and after for your reference. Thanks for your work on this!

![screen shot 2014-02-27 at 11 14 03 am](https://f.cloud.github.com/assets/537700/2286704/eb2d4d94-9fe4-11e3-8efb-07442fe414fb.png)

![screen shot 2014-02-27 at 11 23 55 am](https://f.cloud.github.com/assets/537700/2286702/e5f99b70-9fe4-11e3-8337-540fa6991860.png)