The Acid 3 web standards-compliance test is now up, and there’s no browser in existence yet that fully succeeds at the test.
The World Wide Web Consortium (W3C) develops standards for Internet applications. For example, XHTML, HTML, CSS, etc. Acid 3 basically takes a lot of W3C’s newer standards and tests to be sure that the browser supports the features it should and that it behaves as it should when using them. Acid 3 is a suite of 100 different tests to be sure that these standards are being met. So when I say that browser X gets a score of 55%, this means that browser X passed 55 of the 100 tests it was given.
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