querySelector return null if query with 2 classes

[jimmyshiau]

import 'package:html/parser.dart';
import 'package:html/dom.dart';

void main() {
  final doc = parse('<div class="aa bb"><div class="cc"><div/></div>');
  print(doc.querySelector('.aa.bb .cc'));
  }

*It works fine with .aa .cc

[lookdczar]

I suffered the same problem ul.list li not work ul.list>li and .list li works fine

import 'package:html/parser.dart';
import 'package:html/dom.dart';
void main() {
 var _htmlString = '<ul class="list"><li><a >test</a></li></ul>';
   Element _document = parse(_htmlString).documentElement;

      List<html.Element> list = _document.querySelectorAll('ul.list li');
     if (list.length > 0) {
        print(list.first);
      }
}