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transitionstart

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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The transitionstart event is fired when a CSS transition has started.

General info

Interface
TransitionEvent
Bubbles
Yes
Cancelable
No
Target
document, element
Default Action
None

Properties

Property Type Description
target Read only EventTarget The event target (the topmost target in the DOM tree).
type Read only DOMString The type of event.
bubbles Read only Boolean Whether the event normally bubbles or not
cancelable Read only Boolean Whether the event is cancellable or not?
propertyNameRead only DOMString The name of the CSS property associated with the transition.
elapsedTimeRead only Float The amount of time the transition has been running, in seconds, when this event fired. Note that this value is not affected by the value of transition-delay.
pseudoElementRead only DOMString The name (beginning with two colons) of the CSS pseudo-element on which the transition occured (in which case the target of the event is that pseudo-element's corresponding element), or the empty string if the transition occurred on an element (which means the target of the event is that element).

Specifications

Specification Status Comment
CSS Transitions Level 2
The definition of 'transitionstart' in that specification.
Editor's Draft Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support ? ? 10 ? ?
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ? ? ? ? ?

See also

Document Tags and Contributors

 Contributors to this page: rolfedh, fscholz, cvrebert
 Last updated by: rolfedh,