align the blog filter inputs

Before: 

![screen shot 2014-06-13 at 11 49 22 pm](https://cloud.githubusercontent.com/assets/1425304/3277470/668f5a8c-f377-11e3-8bf9-8be6261e57e9.png)

After:

![screen shot 2014-06-13 at 11 49 38 pm](https://cloud.githubusercontent.com/assets/1425304/3277471/6bcf34c2-f377-11e3-9d1d-47039c4f88c0.png)