Wrap tablet only rule in mq

Before:
![screen shot 2014-11-04 at 11 25 51](https://cloud.githubusercontent.com/assets/1607666/4898861/6cc8a5fc-6415-11e4-9705-254960ca7d16.png)

After:
![screen shot 2014-11-04 at 11 25 31](https://cloud.githubusercontent.com/assets/1607666/4898860/6cc03d40-6415-11e4-8d2a-d4bf043b182e.png)