This is a test for the reading order of content: an assistive technology should be able to provide an alternative presentation of content while preserving the reading order needed to perceive meaning. The test file uses plain markup without styling or scripts, so the reading order is not changed in any way.
The user's assistive technology can programatically determine the sequence of content.
The sequence of content (
This test case maps to technique G57: Ordering the content in a meaningful sequence (http://www.w3.org/TR/2006/WD-WCAG20-TECHS-20060427/Overview.html#G57).
The sequence can be determined programatically.
The sequence of content (