Force double MPU to float right 

... because re-organising the styles to win a specificity war probably isn't smart (`card_sizes` is included _after_ `card_base`, stupid alphabet - no one says it event has to be in that order)!

![screen shot 2014-06-25 at 14 59 16](https://cloud.githubusercontent.com/assets/271645/3386122/f799cda8-fc70-11e3-8453-ae476053c9b1.png)