I’m delighted to tell you that on Wednesday, December 12, Internet Explorer correctly rendered the Acid2 page in IE8 standards mode..
Briefly: Acid2 is one test of how modern browsers work with some specific features across several different web standards.
Now that is excellent news.
You will laugh at the success of browsers have rendering Acid2.
This is a good attempt by Mozilla Firefox
Note: Acid2 is a test case designed by the Web Standards Project to identify web page rendering flaws in browsers and authoring tools.