Originally Posted by theducks
ADE will ignore the whole body style
over that one.
ADE is intolerant of errors
If that's the case, then ADE is just buggy and non-compliant. The CSS spec says unknown properties should just be ignored, they are a mistake of the creator, but don't make the stylesheet invalid.
A different situation is if you forget a colon or semicolon, or write "1.2fm" instead of "1.2em"...