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
Chakra (JScript engine) Chrome (with V8), and Opera (with Carakan). On March 8, 2011, Microsoft published results showing the 32-bit Internet Explorer 9 to be faster than Safari, Firefox (with TraceMonkey), Chrome, and Opera. March 2011 performance tests for ZDNet concluded that Internet Explorer 9 (32-bit), Chrome 10, and Firefox 4 release candidate were "pretty evenly matched." In 2012, subsequent versions of Chakra, such as the version included in Internet Explorer 10, introduced additional performance changes, including JIT compilation on x64 and ARM architectures, and optimizations related to floating point math and garbage collection. At the Last Call JSCONF in 2015, Microsoft announced