:where() - CSS: Cascading Style Sheets | MDN
The :where() CSS pseudo-class function takes a selector list as its argument, and selects any element that can be selected by one of the selectors in that list.| MDN Web Docs
When people talk about CSS complexity, a major contributor to that is CSS specificity, or writing effective CSS selectors. The more you add…| Polypane Blog
The :where() CSS pseudo-class function takes a selector list as its argument, and selects any element that can be selected by one of the selectors in that list.| MDN Web Docs
A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s). For example, the pseudo-class :hover can be used to select a button when a user's pointer hovers over the button and this selected button can then be styled.| MDN Web Docs
The :is() CSS pseudo-class function takes a selector list as its argument, and selects any element that can be selected by one of the selectors in that list. This is useful for writing large selectors in a more compact form.| MDN Web Docs
The :not() CSS pseudo-class represents elements that do not match a list of selectors. Since it prevents specific items from being selected, it is known as the negation pseudo-class.| MDN Web Docs
The functional :has() CSS pseudo-class represents an element if any of the relative selectors that are passed as an argument match at least one element when anchored against this element. This pseudo-class presents a way of selecting a parent element or a previous sibling element with respect to a reference element by taking a relative selector list as an argument.| MDN Web Docs
Everyone’s talking about HTML Web Components, and I think it’s the start of something magical!| Space Ninja
Selectors Level 3| www.w3.org
CSS nesting is great, but should be used with caution. As a rule, if a selector will work without being nested, don’t nest it. However, there are certain situations where nesting can make things easier to understand.| Space Ninja
