Default

Checkboxes that are checked by default match. Only the default state is matched. Changing the state of the checkbox manually doesn't change the match.

Radio buttons that are selected by default match. Only the default state is matched. Changing the state of the radio button manually doesn't change the match.

Select options that are selected by default match. Only the default state is matched. Changing the state of the select option manually doesn't change the match. This works for single and multiple select elements, but options of a single select element cannot be styled.

The default submit button of a form also matches. Because there can only be one default submit button, the second button doesn't match.