Styling and HTML updates for PrivateNetwork

Lo,

This should hopefully come close to addressing https://github.com/duckduckgo/zeroclickinfo-goodies/issues/450. It's the only way I can come up with to make it more compact?

![image](https://cloud.githubusercontent.com/assets/978048/3421551/fb118f0a-fef2-11e3-8c7c-3c37201027cc.png)

Feedback welcomed @chrismorast