transition-duration CSS property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.
The transition-duration CSS property sets the length of time a transition animation should take to complete. By default, the value is 0s, meaning that no animation will occur.
Try it
transition-duration: 500ms;
transition-property: margin-right;
transition-duration: 2s;
transition-property: background-color;
transition-duration: 2s;
transition-property: margin-right, color;
transition-duration: 3s, 1s;
transition-property: margin-right, color;
<section id="default-example">
<div id="example-element">Hover to see<br>the transition.</div>
</section>
#example-element {
background-color: #e4f0f5;
color: black;
padding: 1rem;
border-radius: 0.5rem;
font: 1em monospace;
width: 100%;
transition: margin-right 2s;
}
#default-example:hover > #example-element {
background-color: #990099;
color: white;
margin-right: 40%;
}
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 the number of specified durations is less than in the master list, the user agent repeats the list of durations. If the number of specified durations is more than in the master list, the list is truncated to the right size. In both the cases, the CSS declaration stays valid.
Syntax
css
/* <time> values */
transition-duration: 6s;
transition-duration: 120ms;
transition-duration: 1s, 15s;
transition-duration: 10s, 30s, 230ms;
/* Global values */
transition-duration: inherit;
transition-duration: initial;
transition-duration: revert;
transition-duration: revert-layer;
transition-duration: unset;
Values
<time>-
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 of0sindicates 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.
Formal definition
| Initial value | 0s |
|---|---|
| Applies to | all elements, ::before and ::after pseudo-elements |
| Inherited | no |
| Computed value | as specified |
| Animation type | Not animatable |
Formal syntax
transition-duration =
<time [0s,∞]>#
Examples
Example showing different durations
HTML
html
<div class="box duration-1">0.5 seconds</div>
<div class="box duration-2">2 seconds</div>
<div class="box duration-3">4 seconds</div>
<button id="change">Change</button>
CSS
css
.box {
margin: 20px;
padding: 10px;
display: inline-block;
width: 100px;
height: 100px;
background-color: red;
font-size: 18px;
transition-property: background-color, font-size, transform, color;
transition-timing-function: ease-in-out;
}
.transformed-state {
transform: rotate(270deg);
background-color: blue;
color: yellow;
font-size: 12px;
transition-property: background-color, font-size, transform, color;
transition-timing-function: ease-in-out;
}
.duration-1 {
transition-duration: 0.5s;
}
.duration-2 {
transition-duration: 2s;
}
.duration-3 {
transition-duration: 4s;
}
JavaScript
js
function change() {
const elements = document.querySelectorAll("div.box");
for (const element of elements) {
element.classList.toggle("transformed-state");
}
}
const changeButton = document.querySelector("#change");
changeButton.addEventListener("click", change);
Result
Specifications
| Specification |
|---|
| CSS Transitions Module Level 1 # transition-duration-property |
Browser compatibility
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transition-duration
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Legend
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- Full support
- Full support
- Requires a vendor prefix or different name for use.
- Has more compatibility info.