New styles for blog

https://github.com/GrapheneDB/headquarters/issues/188

![image](https://f.cloud.github.com/assets/660464/1354490/7376c6a6-3755-11e3-8ed1-30b3e0d68b81.png)


![image](https://f.cloud.github.com/assets/660464/1354495/93cab43a-3755-11e3-8205-c022bf974c55.png)