elementStack.removeFirst();
                visitor.onEndHtmlElement(element);
            }
        }

        private void unwindTo(Collection<String> ancestors, TokenVisitor visitor) {
            for (int i = 0; i < elementStack.size(); i++) {
                if (ancestors.contains(elementStack.get(i))) {
                    for (; i > 0; i--) {
                        visitor.onEndHtmlElement(elementStack.removeFirst());