Average: Redesign for BTTF

Fix for #401 CC @chrismorast 

![screen shot 2014-05-07 at 4 23 34 pm](https://cloud.githubusercontent.com/assets/81969/2908246/7df4697a-d625-11e3-8076-f4da0e8ab52d.png)


@sdougbrown What do you think about the CSS?