An XHTML file that is well-formed but not valid: although the markup is structurally correct, some elements have a tabindex although they are not allowed to have that attribute. It cannot be predicted how assistive technology is supposed to respond to this. Possibly, the illegal tabindex values will become part of the tab sequence for all elements with tabindex. Validity error: illegal tabindex attributes Christophe.Strobbe@esat.kuleuven.be en Copyright BenToWeb 2005-2007 2005-10-05 accepted QA Strictly Conforming Documents

This test case is intended to pass even though some attributes are illegal.

 experts

Please navigate through the page with the tab key. Do you get to the welcome message?

Navigeer door deze pagina met de tabtoets. Komt U dan bij het welkom bericht?

blindness low vision

The page is not valid, but this does not necessarily cause accessibility problems.

Depending on the browser, the user can tab to the welcome message (for example with Internet Explorer 6) or tab past it (for example with Mozilla 1.7.3).

The page is not valid, but this does not necessarily cause accessibility problems.

Depending on the browser, the user can tab to the welcome message (for example with Internet Explorer 6) or tab past it (for example with Mozilla 1.7.3).