Use class-names based selectors to simplify the component. Split in as many files as needed (CSS) We also need to take a look again at the markup to see if there is anything to improve. We may need to think about the different type of progress as skins.

Closing BB refactoring bugs in favor of web components, currently tracked in bug 1002417. Please re-open these bugs if there's still something specific that should be done here.