e sheets for the document after 2 seconds");
  secondStylesheetTest.step_timeout(() => {
      assert_true(styleExists("h1 { color: purple; }")); // first style sheet
      assert_true(styleExists("h1 { color: brown; }")); // second style sheet (loaded now!)
      secondStylesheetTest.done();
  }, 3000);
</script>
