This is an experimental feature
Because this feature is still in development in some browsers, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental feature is subject to change in future version of browsers as the spec changes.


The transition-delay CSS property specifies the amount of time to wait between a change being requested to a property that is to be transitioned and the start of the transition effect.

A value of 0s, or 0ms, indicates that the property will begin to animate its transition immediately when the value changes; positive values will delay the start of the transition effect for the corresponding number of seconds. Negative values cause the transition to begin immediately, but to cause the transition to seem to begin partway through the animation effect.

You may specify multiple delays; each delay will be applied to the corresponding property as specified by the transition-property property, which acts as a master list. If there are fewer delays specified than in the master list, missing values are set to the initial value (0s). If there are more delays, the list is simply truncated to the right size. In both case the CSS declaration stays valid.


transition-delay: time[, time]*


Is a <time> denoting the amount of time to wait between a property's value changing and the start of the animation effect.


There are several examples of CSS transitions included in the main CSS transitions article.


Browser compatibility

Browser Lowest Version
Internet Explorer ?
Firefox (Gecko) 4.0 (2.0)
Opera ?
Safari (WebKit) nightly, don't know version

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