CSS Test (Selectors): :focus-visible matches even if preventDefault() is called

This test checks that :focus-visible matches after a keyboard event, even if the event handler calls preventDefault() on the event.

Click "Click here and press right arrow.".
Press the right arrow key.
If the element has a red background, then the test result is FAILURE. If it has a green outline, then the test result is SUCCESS.

Click here and press right arrow.