Adjust styles to match annotated spec files

Adjust styling and layout to more closely match the annotated
spec files at:

* https://drive.google.com/file/d/0B0i_cKL1FSAfU2hucXljb0p6OHM/edit?usp=sharing
* https://drive.google.com/file/d/0B0i_cKL1FSAfWHlEcDM0N3pka28/edit?usp=sharing

Addresses https://github.com/openelections/core/issues/168