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CSS3 animation-timing-function 屬性


瀏覽器支持

屬性     
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-

標簽定義及使用說明

animation-timing-function指定動畫將如何完成一個周期。

速度曲線定義動畫從一套 CSS 樣式變?yōu)榱硪惶姿玫臅r間。

速度曲線用于使變化更為平滑。

默認值:ease
繼承:no
版本:CSS3
JavaScript 語法:objectobject.style.animationTimingFunction="linear"


語法

animation-timing-function:value;

animation-timing-function使用的數學函數,稱為三次貝塞爾曲線,速度曲線。使用此函數,您可以使用您自己的值,或使用預先定義的值之一:

描述
linear動畫從頭到尾的速度是相同的。
ease默認。動畫以低速開始,然后加快,在結束前變慢。
ease-in動畫以低速開始。
ease-out動畫以低速結束。
ease-in-out動畫以低速開始和結束。
cubic-bezier(n,n,n,n)在 cubic-bezier 函數中自己的值。可能的值是從 0 到 1 的數值。

提示:請試著在下面的"嘗試一下"功能中使用不同的值。


Examples

在線實例

實例

從開始到結束以相同的速度播放動畫:

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

實例

為了更好地理解不同的定時函數值,這里提供了設置五個不同值的五個不同的 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;}

實例

與上例相同,但是通過 cubic-bezier 函數來定義速度曲線:

/* 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);}


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