HTML5 Media Elements: Content inside the 'audio' element is not shown to the user.

Content inside the 'audio' element is not shown to the user.

Test Result	Test Assertion
Manual	Test fails if the red text 'FAIL' appears anywhere on the page.


http://www.w3.org/TR/html5/video.html#audio

Content may be provided inside the audio element. User agents should not 
show this content to the user; it is intended for older Web browsers 
which do not support audio, so that legacy audio plugins can be tried, 
or to show text to the users of these older browsers informing them of 
how to access the audio contents.