Matthew Pennell wrote:
Until you tell that to someone that knows what they're talking about,
and then you look like an idiot. Valid code means the browser has to
spend less time figuring out what you meant to write, the page is is
more likely to look the same across browsers and platforms, and
accessibility AT will have an easier time rendering the content in
whatever format it produces.
I'd honestly be quite suprised if having good validating semantic markup
didn't improve your search engine rankings for certain queries. It only
makes sense for it to do so since the search engine has more knowledge
regarding what your site is about.
I know all the other reasons for why you should use validating markup,
but people generally don't care and the question was how you would sell
it rather than why should you do it. Minor speed increases,
accessibility, identical appearance - not sure why but for some reason
these aren't generally enough to convince people to spend more just to
get a competent developer
Sometimes I make invalid code with the specific purpose of
increasing accessibility (ie making it work in as many browsers as
possible).
Example?
Anything where you're unable to change the html to include conditional
comments. Sites that are modelled on css zen garden for example, i've
worked on one of those. Myspace themes (ew). I believe the YUI Fonts
styles don't validate either.
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