Add the current controller and action as classes to <body>
Make the timeline control fill the entire page's width
Keep CSS in separate per-controller files
Improve typography for the static pages
Make the navbar's contents take the full page's width
Use Lucida Grande (or fallbacks) for the navbar

This makes it consistent with the static pages's text style.
Extract the font styles in a CSS variables partial
Make the text in the timeline use our common font family