Here is some code that I not long ago wrote. I believe it offers a basic clarification of combining class/ID names with pseudoclasses. The identical trick can be achieved with just the first line, but the advantage of defining multiple outlines is you get a visible clue via the border https://totalbookmarking.com/story19349914/a-simple-key-for-prestashop-addthis-integration-share-content-on-social-networks-unveiled