CSS3 animation-timing-function 属性

定义和用法

animation-timing-function:指定动画速度曲线。

速度曲线定义动画从一套 CSS 样式变为另一套所用的时间。

速度曲线用于使变化更为平滑。

默认值: ease
继承: no
版本: CSS3
JavaScript 语法: object object.style.animationTimingFunction="linear"


语法

animation-timing-function: linear|ease|ease-in|ease-out|cubic-bezier(n,n,n,n);
描述测试
linear动画从开始到结束具有相同的速度。测试
ease动画有一个缓慢的开始,然后快,结束慢。测试
ease-in动画有一个缓慢的开始。测试
ease-out动画结束缓慢。测试
ease-in-out动画具有缓慢的开始和慢的结束。测试
cubic-bezier(n,n,n,n)在立方贝塞尔函数中定义速度函数。 可能的值是从0到1的数字值。 

提示: 请试着在下面的"尝试一下"功能中使用不同的值。


在线实例

实例

从开始到结束以相同的速度播放动画:

animation-timing-function:linear;
-webkit-animation-timing-function:linear; /* Safari and Chrome */

尝试一下 »
在此页底部有更多的例子。

实例

为了更好地理解不同的定时函数值,这里提供了设置五个不同值的五个不同的 div 元素:

/* W3C and Opera: */
#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;}
/* Firefox: */
#div1 {-moz-animation-timing-function: linear;}
#div2 {-moz-animation-timing-function: ease;}
#div3 {-moz-animation-timing-function: ease-in;}
#div4 {-moz-animation-timing-function: ease-out;}
#div5 {-moz-animation-timing-function: ease-in-out;}
/* Safari and Chrome: */
#div1 {-webkit-animation-timing-function: linear;}
#div2 {-webkit-animation-timing-function: ease;}
#div3 {-webkit-animation-timing-function: ease-in;}
#div4 {-webkit-animation-timing-function: ease-out;}
#div5 {-webkit-animation-timing-function: ease-in-out;}

尝试一下 »

实例

与上例相同,但是通过 cubic-bezier 函数来定义速度曲线:

/* W3C and Opera: */
#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);}
/* Firefox: */
#div1 {-moz-animation-timing-function: cubic-bezier(0,0,1,1;}
#div2 {-moz-animation-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-moz-animation-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-moz-animation-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-moz-animation-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Safari and Chrome: */
#div1 {-webkit-animation-timing-function: cubic-bezier(0,0,1,1;}
#div2 {-webkit-animation-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-webkit-animation-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-webkit-animation-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-webkit-animation-timing-function: cubic-bezier(0.42,0,0.58,1);}

尝试一下 »


浏览器支持

属性     
animation-timing-function43.0
4.0 -webkit-
10.016.0
5.0 -moz-
9.0
4.0 -webkit-
30.0
15.0 -webkit-
12.0 -o-

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CSS3 tutorial: CSS3 动画