fn on_simple_selector<C: Collector>(
s: &Component<SelectorImpl>,
quirks_mode: QuirksMode,
collector: &mut C,
) -> Result<ComponentVisitResult, AllocErr>
fn on_simple_selector<C: Collector>(
s: &Component<SelectorImpl>,
quirks_mode: QuirksMode,
collector: &mut C,
) -> Result<ComponentVisitResult, AllocErr>