- Module works without earning any improve in the existing PrestaShop file to ensure existing customization and concept alter never influence. div p pick out all p components who are decedent of div factor, While div > p pick only little one p things, not grand youngster, wonderful grand etc. https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html