Here's some code which i a short while ago wrote. I are convinced it offers a simple explanation of combining class/ID names with pseudoclasses. donc je le conseille sans meme pas hesiter. je ne suis pas la pour faire la pub , mais juste auto je sais que le module https://www.presta-addons-modules.com/en/front-office/prestashop-currency-language-by-locations-geoip-auto-redirect.html