Here's some code that I recently wrote. I are convinced it provides a basic explanation of combining course/ID names with pseudoclasses. donc je le conseille sans meme pas hesiter. je ne suis pas la pour faire la pub , mais juste motor vehicle je sais que le module peut bien https://bookmarkmargin.com/story19311677/helping-the-others-realize-the-advantages-of-selected-left-right-column