ect3 should be greenyellow");

    await test_driver.send_keys(document.body, tab_key);
    assert_equals(getComputedStyle(subject1).color, "rgb(144, 238, 144)",
                  "subject1 should be lightgreen");
    assert_equals(getComputedStyle(subject3).color, "rgb(238, 130, 238)",
                  "subject3 should be violet");

    focusme3.remove();
    assert_equals(getComputedStyle(subject1).color, "rgb(0, 0, 0)",
                  "subject1 should be black");
    assert_equals(getComputedStyle(su