fix desktop listing font-sizes (bug 931946)

heading to 26px/26px
author/ratings to 15px/20px

![screen shot 2013-11-22 at 4 33 52 pm](https://f.cloud.github.com/assets/674727/1605387/9f0057f2-53d8-11e3-89f4-c1b6640657ba.png)