CSS 3 transition-timing-function 属性
CSS transition-timing-function 属性指定切换效果的速度
此属性允许一个过渡效果，以改变其持续时间的速度
| 默认值 | ease |
|---|---|
| 继承 | 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* );
值说明
| 值 | 描述 |
|---|---|
| linear | 规定以相同速度开始至结束的过渡效果 等同于 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 等同于 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 等同于 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 |
浏览器支持
下表中的数字表示支持该属性的第一个浏览器版本号。
紧跟在 -webkit-, -ms- 或 -moz- 前的数字为支持该前缀属性的第一个浏览器版本号。
| 26.0 4.0 -webkit- |
10.0 | 16.0 4.0 -moz- |
6.1 3.1 -webkit- |
12.1 10.5 -o- |
范例
转场效果以同样的速度从开始到结束
transition-timing-function: linear; -webkit-transition-timing-function: linear; /* Safari and Chrome */
范例 2
为了更好地理解不同的函数值：这里有五个不同的 div 元素，用 5 个不同的值
#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;} /* Safari */ #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;}
范例
和上面的例子一样，但指定速度曲线立方贝塞尔曲线函数
#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);} /* Safari */ #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);}