à http://www.alistapart.com/stories/tohell/helltest.html
Its an slightly older article, but it touches on things that we may take for granted (or forget all together) as we create our sites:
Some good quotes:
And for those who insist on 4.0 browsers, theres a movement to start redirecting people to this page if they are running a non-compliant (<=1997) browser:
http://webstandards.org/act/campaign/buc/ (also worth your time)
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