transition-duration

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.

transition-duration 属性以秒或毫秒为单位指定过渡动画所需的时间。默认值为 0s，表示不出现过渡动画。

可以指定多个时长，每个时长会被应用到由 transition-property 指定的对应属性上。如果指定的时长个数小于属性个数，那么时长列表会重复。如果时长列表更长，那么该列表会被裁减。两种情况下，属性列表都保持不变。

初始值0s
适用元素all elements, ::before and ::after pseudo-elements
是否是继承属性否
计算值as specified
动画类型Not animatable

语法

css
/* <time> 值 */
transition-duration: 6s;
transition-duration: 120ms;
transition-duration: 1s, 15s;
transition-duration: 10s, 30s, 230ms;

/* 全局值 */
transition-duration: inherit;
transition-duration: initial;
transition-duration: unset;

值

<time>

<time> 类型。表示过渡属性从旧的值转变到新的值所需要的时间。如果时长是 0s ，表示不会呈现过渡动画，属性会瞬间完成转变。不接受负值。

形式语法

transition-duration = 
  <time [0s,∞]>#

示例

展示不同的延迟

HTML

html
<div class="box duration-1">0.5 秒</div>

<div class="box duration-2">2 秒</div>

<div class="box duration-3">4 秒</div>

<button id="change">变换</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);

结果

规范

Specification
CSS Transitions
# transition-duration-property

浏览器兼容性

BCD tables only load in the browser

参见