nSignificant
images need alternative text
¨ Informative
¨ alt, title, and longdesc HTML
attributes
¨
¨
nInsignificant
images need empty alt text
n
nAutomatic
Determination?
¨
n More than one color AND both dimensions > 10 pixels
n An associated action (clickable, etc.)
<img
src="images/spacer.gif" width="1" height="1“
alt=“”>