Fix search dropdown overlapping sponsored badge

## Before

![screen shot 2014-08-18 at 12 43 57](https://cloud.githubusercontent.com/assets/74132/3950875/46fdb2de-26cd-11e4-8420-5ffcf313dc98.png)

## After

![screen shot 2014-08-18 at 12 44 04](https://cloud.githubusercontent.com/assets/74132/3950881/50e16f8e-26cd-11e4-8b48-4aa4cea5844b.png)