Fair enough. Although, for the purposes of this bugfix, `#foo :hover` is not valid CSS syntax. [Pseudo-classes](https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes) must always be attached to other selectors (some [pseudo-elements](https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements) (doubled colons), however, can be distinct).