Quote:
Originally Posted by dgatwood
You can specify pretty much any random crap as long as it follows the rules for CSS syntax structure, and it won't complain.
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That's according to the CSS spec, which says that the renderer should simply ignore properties it doesn't know about.
Quote:
Originally Posted by JSWolf
You have to pass an epubcheck validation.
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As far as I know, epubcheck validation is the same. It may warn about unknown properties (which is fine, they may be misspelt, or the content may rely too much on them), but it should not flag them as an error. And a renderer choking on unknown CSS properties is just buggy.