> Always put a blank line before a selector.

Does this also apply to nested elements, as that doesn't follow the examples above?
Should it be:

> Always put a blank line before a *top level* selector.

I tend to agree with @pandalion on the style she presented above. Although not documented, this is the 'house' style that @pandalion @perry and myself had mostly established, which is why I used it as the base guide example.

Do we need a rule for this? Without a specific entry in our guide, our CSS files will still remain different, and spacing does make the files look quite different?