Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

Note: All browsers support the transition property without vendor prefixes. Only WebKit (Safari), and not Chromium, based browsers support the -webkit-transition media feature. No browsers support transition without the prefix as a media query (though some browsers do support - -webkit-transform-3d). Use the @supports (transition) feature query instead.

The -webkit-transition Boolean non-standardCSS media feature is a WebKit extension whose value is true if the browsing context supports CSS transitions.

Apple has a description in Safari CSS Reference; this is now called transition there.

Note: You should not use this media feature; it was never specified, has never been widely implemented, and has been removed from most browsers. Use a @supports feature query instead.


@media (-webkit-transition) {
  /* CSS to use if this media feature and prefixed transitions are supported */


Use @supports instead

Do not use the -webkit-transition media feature. Instead, test for transition support using the CSS @supports at-rule, like this:

@supports (transition: initial) {
  /* CSS to use if transitions are supported */

Obsolete example

Before this became obsolete, you could use -webkit-transition in your CSS like this:

@media (-webkit-transition) {
  /* CSS to use if transitions are supported */


Not part of any standard.

Browser compatibility

BCD tables only load in the browser

See also