::before and ::after creates pseudo-elements that is the first and last child of the selected element respectively. --> The pseudo-element will not become "child" of selected element in a sense that we cannot select them using Child combinator .parent > * or Descendant combinator .parent *. also :last-child and :first-child don't apply to them.
::before and ::after creates pseudo-elements that is the first and last child of the selected element respectively. --> The pseudo-element will not become "child" of selected element in a sense that we cannot select them using Child combinator
.parent > *or Descendant combinator.parent *. also:last-childand:first-childdon't apply to them.To be more accurate, we should say "they behave as child" like said in the specification: w3.org/TR/css-pseudo-4/#generated-...
Updated the wording of the phrase 👍