CSS animations

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CSS animations is a proposed module for Cascading Style Sheets that allows the animation of HTML document elements using CSS.


While the pseudo-class :hover has been used to generate rudimentary animations for years, extensions of CSS into the realm of animation were minimal until the late 2000s decade. As early as 2007, WebKit had announced its intent to include CSS animation, transitions, and transforms as features of WebKit. It also announced the implementation of both implicit and explicit animation through CSS in February 2009. CSS animation has also been put forth as a feature of CSS3, the ongoing draft specification managed by the World Wide Web Consortium (W3C).

Browser support[edit]

As of June 2011, Firefox 5 includes CSS animations support.[1] 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 -webkit- prefix.[2][3][4] It is also used in iTunes 9 to support iTunes LP files.


Early on in the development of the CSS animation it had drawn concern from those who prefer animation via JavaScript[5] or, to a lesser-used extent, Synchronized Multimedia Integration Language (SMIL); others have claimed that it is a move by Apple Inc., the main sponsor of the WebKit project, to sidestep the inclusion of Adobe Flash (and the incumbent Flash animations) on the company's iOS line of mobile devices which use Safari.[6][7][8]

See also[edit]


  1. ^ Firefox 5 release notes, The Mozilla Foundation, 2011-06-21
  2. ^ Hyatt, Dave (2007-10-31), CSS Animation, Surfin’ Safari
  3. ^ Jackson, Dean (2009-02-05), CSS Animation, Surfin’ Safari
  4. ^ keyframes rule, Microsoft, 2018-11-25
  5. ^ Snook, Jonathan (2007-10-31), CSS Animations in Safari, Snook.ca
  6. ^ Kim, Arnold (2009-02-06), CSS Animation Coming to Safari, Already in iPhone. Less Dependence on Flash?, MacRumors.com
  7. ^ Palmer, Robert (2009-02-06), CSS Animation to replace need for Flash in MobileSafari? Not likely, The Unofficial Apple Weblog
  8. ^ Ferrari, Vincent (2009-02-09), CSS Animations: A Flash Substitute?, Apple Thoughts

External links[edit]