Style(select1,'::picker(select)').appearance,'auto');
  await test_driver.bless('showPicker');
  select1.showPicker();
  assert_equals(getComputedStyle(select1,'::picker(select)').backgroundColor,red,'appearance:auto picker is never open');
  // Close the picker
  await clickOn(select1);
  assert_false(select1.matches(':open'));
}, 'Basic functionality of select picker with appearance:auto');

promise_test(async (t) => {
  const style = document.createElement('style');
  document.head.append(style);
  t.add