At the beginning of March, the Web Standards Project (WaSP)
released Acid3, a web standards spot-checking test. As with
Acid2, the goal of the test is to improve interoperability
between web browsers. The Acid3 test consists of 100 DOM sub-
tests, which assess a browser's support for DOM, CSS, SVG, and
ECMAscript, as well as some rendering tests. To pass the test, a
browser must render the test pixel for pixel identical to the
reference rendering, pass all 100 DOM tests, and animate the
test smoothly. So far, Opera is the only browser to pass all 100
DOM tests (more on that in a bit). Information about the pass
rates for browsers is available in Wikipedia's excellent article
about Acid3. While browser vendors implement the same web
standards, their implementations are sometimes incompatible due
to bugs, different interpretations of the standards, or missing
functionality. Incompatible implementations increase the
development time and decrease the innovation of web
sites/applications. Thus, the WaSP Acid tests