CSS3 transition-timing-function 屬性
實例
以相同的速度從開始到結(jié)束的過渡效果：
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 */
}
瀏覽器支持
Internet Explorer 10、Firefox、Opera 和 Chrome 支持 transition-timing-function 屬性。
Safari 支持替代的 -webkit-transition-timing-function 屬性。
注釋：Internet Explorer 9 以及更早版本的瀏覽器不支持 transition-timing-function 屬性。
定義和用法
transition-timing-function 屬性規(guī)定過渡效果的速度曲線。
該屬性允許過渡效果隨著時間來改變其速度。
| 默認值： | ease |
|---|---|
| 繼承性： | no |
| 版本： | CSS3 |
| JavaScript 語法： | object.style.transitionTimingFunction="linear" |
語法
transition-timing-function: linear|ease|ease-in|ease-out|ease-in-out|cubic-
bezier(n,n,n,n);
| 值 | 描述 |
|---|---|
| linear | 規(guī)定以相同速度開始至結(jié)束的過渡效果（等于 cubic-bezier(0,0,1,1)）。 |
| ease | 規(guī)定慢速開始，然后變快，然后慢速結(jié)束的過渡效果（cubic-bezier(0.25,0.1,0.25,1)）。 |
| ease-in | 規(guī)定以慢速開始的過渡效果（等于 cubic-bezier(0.42,0,1,1)）。 |
| ease-out | 規(guī)定以慢速結(jié)束的過渡效果（等于 cubic-bezier(0,0,0.58,1)）。 |
| ease-in-out | 規(guī)定以慢速開始和結(jié)束的過渡效果（等于 cubic-bezier(0.42,0,0.58,1)）。 |
| cubic-bezier(n,n,n,n) | 在 cubic-bezier 函數(shù)中定義自己的值�？赡艿闹凳� 0 至 1 之間的數(shù)值。 |
提示：請在實例中測試不同的值，這樣可以更好地理解它們的工作原理。
親自試一試 - 實例
實例 1
為了更好地理解不同的函數(shù)值，請看下面帶有五個不同值的五個不同的 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;}
實例 2
與上例相同，但通過 cubic-bezier 來規(guī)定速度曲線：
#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);}