Sure, CSS are unable to offer optimum security, or you can say the objective just isn't to supply that kind of security for the website. A great deal of browsers essential distinctive properties for a similar functionality(cross-browser issue). For each default Social Login will likely be shown during the sidebar https://www.presta-addons-modules.com/en/front-office/prestashop-addthis-integration-share-content-on-social-networks.html