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CSS/ xhtml: does validation matter? (19 Nov 2004)
Warning: mega-geeky subject matter! One of the questions I was asked at mediaelements was by a guy who'd read my tirade against the invalidity of embedding Flash. The question was "Does validation matter?". It's a question that is being discussed a lot lately, and I pitched in with my unfashionable opinion.

Validation is important as a step to making your sites work, but it's not the be-all and the end-all. If I were running a team, for example, I would require full xhtml and css validation as part of the acceptance process, unless there was justification for accepting invalid code. In a sort of code-shop version of Guantanemo Bay, validation failures are assumed guilty until they can prove their innocence.
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