Properly center both label and number and simplify layout.

Makes the layout look more symmetrical.

Before:
![before](https://cloud.githubusercontent.com/assets/781373/3064313/f379b97a-e250-11e3-9ca4-56a94b562aef.png)

After:
![after](https://cloud.githubusercontent.com/assets/781373/3064296/b2ec3c48-e250-11e3-9d66-f5e4a69d521b.png)