Here is some code which i not long ago wrote. I are convinced it provides a essential explanation of combining class/ID names with pseudoclasses. * is a wildcard. What this means is that it'll use the design to any HTML element. Additional *'s use the style to some corresponding degree https://www.presta-addons-modules.com/en/front-office/prestashop-social-media-side-bar-links-buttons-on-all-pages.html