12 Facts About Acid2


Acid2 is a webpage that test web browsers' functionality in displaying aspects of HTML markup, CSS 2.

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Acid2 tests rendering flaws in web browsers and other applications that render HTML.

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Acid2 was designed with Microsoft Internet Explorer particularly in mind.

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Acid2 challenged Microsoft to make Internet Explorer comply with web standards.

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Acid2 was first proposed by Hakon Wium Lie, chief technical officer of Opera Software and creator of the widely used Cascading Style Sheets web standard.

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Acid2 announced that Acid2 would be a challenge to Microsoft to design Internet Explorer 7, then in development, to achieve a greater degree of standards compliance than previous versions of Internet Explorer.

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On 23 April 2005, Acid2 was updated to fix a bug that made the mouth appear too close to the nose.

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In July 2005, Chris Wilson, the Internet Explorer Platform Architect, stated that passing Acid2 was not a priority for Internet Explorer 7, describing the test as a "wish list" of features rather than a true test of standards compliance.

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In December 2007, Microsoft announced that all the changes required to pass Acid2 would be made available in Internet Explorer 8, but that the changes would not be turned on by default, meaning that IE8 would not actually pass the test.

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The creators of Acid2 considered object element support important because it allows for content fallback—if an object fails to load, then the browser can display alternative content in its place.

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Paint order, which means that Acid2 requires that the browser has standard paint order.

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Acid2 is not a comprehensive test, it does not guarantee total conformance to any particular standard.

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