下面有更多 "亲自试一试" 示例。
这个animation-timing-function
指定动画的速度曲线。
速度曲线定义动画从一组 CSS 样式更改为另一组 CSS 样式所用的时间。
利用速度曲线使变化平滑。
表中的数字指定完全支持该属性的第一个浏览器版本。
后跟 -webkit-、-moz- 或 -o- 的数字指定使用前缀的第一个版本。
Property | |||||
---|---|---|---|---|---|
animation-timing-function | 43.0 4.0 -webkit- |
10.0 | 16.0 5.0 -moz- |
9.0 4.0 -webkit- |
30.0 15.0 -webkit- 12.0 -o- |
animation-timing-function: linear|ease|ease-in|ease-out|ease-in-out|step-start|step-end|steps(int,start|end)|cubic-bezier(
n,
n,
n,
n)|initial|inherit;
动画计时函数使用称为三次贝塞尔曲线的数学函数来制作速度曲线。您可以在此函数中使用自己的值,或使用预定义的值之一:
Value | Description | Demo |
---|---|---|
linear | The animation has the same speed from start to end | Play it » |
ease | Default value. The animation has a slow start, then fast, before it ends slowly | Play it » |
ease-in | The animation has a slow start | Play it » |
ease-out | The animation has a slow end | Play it » |
ease-in-out | The animation has both a slow start and a slow end | Play it » |
step-start | Equivalent to steps(1, start) | |
step-end | Equivalent to steps(1, end) | |
steps(int,start|end) | Specifies a stepping function, with two parameters. The first parameter specifies the number of intervals in the function. It must be a positive integer (greater than 0). The second parameter, which is optional, is either the value "start" or "end", and specifies the point at which the change of values occur within the interval. If the second parameter is omitted, it is given the value "end" | |
cubic-bezier(n,n,n,n) | Define your own values in the cubic-bezier function Possible values are numeric values from 0 to 1 |
|
initial | Sets this property to its default value. Read about initial | |
inherit | Inherits this property from its parent element. Read about inherit |
提示:尝试下面"More Examples" 部分中的不同值。
为了更好地理解不同的计时函数值;
以下是具有五个不同值的五个不同的 <div> 元素:
#div1 {animation-timing-function: linear;}
#div2 {animation-timing-function: ease;}
#div3 {animation-timing-function: ease-in;}
#div4 {animation-timing-function: ease-out;}
#div5 {animation-timing-function: ease-in-out;}
亲自试一试 »
与上面的示例相同,但速度曲线是使用三次贝塞尔函数定义的:
#div1 {animation-timing-function: cubic-bezier(0,0,1,1);}
#div2 {animation-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {animation-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {animation-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {animation-timing-function: cubic-bezier(0.42,0,0.58,1);}
亲自试一试 »
CSS教程:CSS 动画
HTML DOM 参考:AnimationTimingFunction 属性
截取页面反馈部分,让我们更快修复内容!也可以直接跳过填写反馈内容!