In CSS you can target different elements in the same style, so yes those codes are for the top ones but they are also for the bottom.
Edit: Sorry, here's a better resource http://webdesign.about.com/od/cssselectors/qt/tipcssgroupsele.htm
In CSS you can target different elements in the same style, so yes those codes are for the top ones but they are also for the bottom.
Edit: Sorry, here's a better resource http://webdesign.about.com/od/cssselectors/qt/tipcssgroupsele.htm