CSS animations draft specification managed by the World Wide Web Consortium (W3C). As of June 2011, Firefox 5 includes CSS animations support. CSS animation is also available as a module in the nightly builds of WebKit as well as Google Chrome, Safari 4 and 5 and Safari for iOS (iPhone, iPod Touch, iPad), Android versions 2.x and 3.x, Internet Explorer 10+ and Microsoft Edge browser, the BlackBerry OS 6 web browser, with the codice_2 prefix. It is also used in iTunes 9 to support iTunes LP files. Future support: Opera v12+ will support CSS3 animations and transformations with codice_3 prefix. Early on
Google Chrome first release of Google Chrome passed both the Acid1 and Acid2 tests. Beginning with version 4.0, Chrome has passed all aspects of the Acid3 test. , Chrome has very good support for JavaScript/ECMAScript according to Ecma International's ECMAScript standards conformance Test 262 (version ES5.1 May 18, 2012). This test reports as the final score the number of tests a browser failed; hence lower scores are better. In this test, Chrome version 37 scored 10 failed/11578 passed. For comparison, Firefox 19 scored 193 failed/11752 passed and Internet Explorer 9 has a score of 600+ failed, while Internet Explorer 10 has a