@media principles, in conjunction with media queries (formerly only media styles), Regulate which variations are applied and which are not based on what media the page is being shown in. When the module isn't going to discover ideal currency and language as per visitors' site then default currency and language https://www.presta-addons-modules.com/en/front-office/prestashop-geoip-popup-message-and-redirect-links-based-on-country.html