An XHTML file that is not well-formed because the em and strong elements overlap while they should nest. This makes the structure ambiguous and might cause problems, for example for IBM Home Page Reader (see 'HTML 4.01 validity errors' at http://www.w3.org/2005/Talks/0908-wcag/validity-errors.html. Well-formedness error: overlapping elements Christophe.Strobbe@esat.kuleuven.be en Copyright BenToWeb 2004-2007 2005-10-04 draft Documents must be well-formed Documents must be well-formed

This test case is intended to fail because the because the markup is ambiguous and may cause problems for assistive technologies.

 enduser

Does the order of the words in the sentence make sense?

intellectual disability dyslexia other

Does the order of the words in the sentence make sense?

The syntax of the document is not correct; the content may be rendered in an incorrect order.

The document is not well-formed: the strong element is not completely nested inside the em element. See 'Common HTML 4.01 validity errors and their effect on accessibility' at http://www.w3.org/2005/Talks/0908-wcag/validity-errors.html and 'Tag Soup: How UAs handle <x> <y> </x> </y>' at http://ln.hixie.ch/?start=1037910467&count=1.