🦖 CSS selector structure 🦖
https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_selectors/Selector_structure
The CSS selector represents a particular pattern of element or elements in a tree structure. The term "selector" can refer to a simple selector, a compound selector, or a complex selector. When included in the :has() pseudo-class as a parameter, these selectors are referred to as relative selectors, representing elements relative to one or more anchor elements.