Here is some code that I a short while ago wrote. I imagine that it provides a primary explanation of combining class/ID names with pseudoclasses. A nested & selects the mother or father ingredient in the two SASS and LESS. It isn't really only for pseudo elements, it can be https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html