transition-duration property CSS Reference

Definition and Usage

The transition-duration CSS property specifies the number of seconds or milliseconds a transition animation should take to complete. By default, the value is 0s, meaning that no animation will occur.

You may specify multiple durations; each duration will be applied to the corresponding property as specified by the transition-property property, which acts as a master list. If there are fewer durations specified than in the master list, the user agent repeat the list of durations. If there are more durations, the list is simply truncated to the right size. In both case the CSS declaration stays valid.

  • Initial 0s
  • Applies to all elements, ::before and ::after pseudo-element
  • Inherited no
  • Media interactive
  • Computed Value as specified
  • Animatable no
  • Canonical order the unique non-ambiguous order defined by the formal grammar


Formal syntax: <time>#
transition-duration: 6s
transition-duration: 120ms
transition-duration: 1s, 15s
transition-duration: 10s, 30s, 230ms
transition-duration: inherit


Is a <time> denoting the amount of time the transition from the old value of a property to the new value should take. A time of 0s indicates that no transition will happen, that is the switch between the two states will be instantaneous. A negative value for the time renders the declaration invalid.


No examples


Desktop browsers

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 1.0 -webkit 4.0 (2.0) -moz
16.0 (16.0)
10.0 11.6 -o
3.0 -webkit

Mobile browsers

Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 2.1 -webkit 4.0 (2.0) -moz
16.0 (16.0)
NA 10.0 -o
3.2 -webkit

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