CSS3 transition-timing-function 属性

CSS 参考手册

实例

以相同的速度从开始到结束的过渡效果：

div
{
transition-timing-function: linear;
-moz-transition-timing-function: linear; /* Firefox 4 */
-webkit-transition-timing-function: linear; /* Safari 和 Chrome */
-o-transition-timing-function: linear; /* Opera */
}

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浏览器支持

IE Firefox Chrome Safari Opera

Internet Explorer 10、Firefox、Opera 和 Chrome 支持 transition-timing-function 属性。

Safari 支持替代的 -webkit-transition-timing-function 属性。

注释：Internet Explorer 9 以及更早版本的浏览器不支持 transition-timing-function 属性。

定义和用法

transition-timing-function 属性规定过渡效果的速度曲线。

该属性允许过渡效果随着时间来改变其速度。

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

语法

transition-timing-function: linear|ease|ease-in|ease-out|ease-in-out|cubic-
bezier(n,n,n,n);
值 描述
linear 规定以相同速度开始至结束的过渡效果（等于 cubic-bezier(0,0,1,1)）。
ease 规定慢速开始，然后变快，然后慢速结束的过渡效果（cubic-bezier(0.25,0.1,0.25,1)）。
ease-in 规定以慢速开始的过渡效果（等于 cubic-bezier(0.42,0,1,1)）。
ease-out 规定以慢速结束的过渡效果（等于 cubic-bezier(0,0,0.58,1)）。
ease-in-out 规定以慢速开始和结束的过渡效果（等于 cubic-bezier(0.42,0,0.58,1)）。
cubic-bezier(n,n,n,n) 在 cubic-bezier 函数中定义自己的值。可能的值是 0 至 1 之间的数值。

提示：请在实例中测试不同的值，这样可以更好地理解它们的工作原理。

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实例 1

为了更好地理解不同的函数值，请看下面带有五个不同值的五个不同的 div 元素：

#div1 {transition-timing-function: linear;}
#div2 {transition-timing-function: ease;}
#div3 {transition-timing-function: ease-in;}
#div4 {transition-timing-function: ease-out;}
#div5 {transition-timing-function: ease-in-out;}
/* Firefox 4: */
#div1 {-moz-transition-timing-function: linear;}
#div2 {-moz-transition-timing-function: ease;}
#div3 {-moz-transition-timing-function: ease-in;}
#div4 {-moz-transition-timing-function: ease-out;}
#div5 {-moz-transition-timing-function: ease-in-out;}
/* Safari and Chrome: */
#div1 {-webkit-transition-timing-function: linear;}
#div2 {-webkit-transition-timing-function: ease;}
#div3 {-webkit-transition-timing-function: ease-in;}
#div4 {-webkit-transition-timing-function: ease-out;}
#div5 {-webkit-transition-timing-function: ease-in-out;}
/* Opera: */
#div1 {-o-transition-timing-function: linear;}
#div2 {-o-transition-timing-function: ease;}
#div3 {-o-transition-timing-function: ease-in;}
#div4 {-o-transition-timing-function: ease-out;}
#div5 {-o-transition-timing-function: ease-in-out;}

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实例 2

与上例相同，但通过 cubic-bezier 来规定速度曲线：

#div1 {transition-timing-function: cubic-bezier(0,0,1,1;}
#div2 {transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {transition-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Firefox 4: */
#div1 {-moz-transition-timing-function: cubic-bezier(0,0,0.25,1);}
#div2 {-moz-transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-moz-transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-moz-transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-moz-transition-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Safari and Chrome: */
#div1 {-webkit-transition-timing-function: cubic-bezier(0,0,1,1;}
#div2 {-webkit-transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-webkit-transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-webkit-transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-webkit-transition-timing-function: cubic-bezier(0.42,0,0.58,1);}
/* Opera: */
#div1 {-o-transition-timing-function: cubic-bezier(0,0,1,1;}
#div2 {-o-transition-timing-function: cubic-bezier(0.25,0.1,0.25,1);}
#div3 {-o-transition-timing-function: cubic-bezier(0.42,0,1,1);}
#div4 {-o-transition-timing-function: cubic-bezier(0,0,0.58,1);}
#div5 {-o-transition-timing-function: cubic-bezier(0.42,0,0.58,1);}

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