Ask HN: Why don't modern Chrome and Firefox pass the Acid3 test anymore?
A few years ago there was a large hype of browsers being the first to pass the Acid3 test.<p>Now I tested the Acid3 test (http:&#x2F;&#x2F;acid3.acidtests.org&#x2F;; also cf. http:&#x2F;&#x2F;www.acidtests.org&#x2F;) with the most recent browsers available to me:<p>Google Chrome 61.0.3163.91 (64 bit), Firefox 55.0.3 (64 bit) and Microsoft Edge.<p>Ironically (with respect to Microsoft&#x2F;IE haters) only Microsoft Edge still passes the Acid3 test with 100&#x2F;100, while Chrome and Firefox only get 97&#x2F;100 (the second and third box from the left stays gray).<p>But this would not be Hacker News if it were not for some technology discussion: So what is the reason why these two browsers do not pass the Acid3 test anymore?