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css animation 属性

2024-09-07 18:52:17   217人阅读

 定义和用法

    animation 属性是一个简写属性，用于设置六个动画属性：

      1.animation-name  规定需要绑定到选择器的 keyframe 名称。

      2.animation-duration 规定完成动画所花费的时间，以秒或毫秒计。

      3.animation-timing-function  规定动画的速度曲线。

                   属性有：

                         linear 动画从头到尾的速度是相同的。

                         ease  默认。动画以低速开始，然后加快，在结束前变慢

                         ease-in  动画以低速开始。

                         ease-out  动画以低速结束。

                         ease-in-out 动画以低速开始和结束。

                         cubic-bezier(n,n,n,n)  在 cubic-bezier 函数中自己的值。可能的值是从 0 到 1 的数值。

       官方代码：           

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4 <style> 
 5 div
 6 {
 7 width:100px;
 8 height:50px;
 9 background:red;
10 color:white;
11 font-weight:bold;
12 position:relative;
13 animation:mymove 5s infinite;
14 -webkit-animation:mymove 5s infinite; /* Safari and Chrome */
15 }
16 
17 #div1 {animation-timing-function:linear;}
18 #div2 {animation-timing-function:ease;}
19 #div3 {animation-timing-function:ease-in;}
20 #div4 {animation-timing-function:ease-out;}
21 #div5 {animation-timing-function:ease-in-out;}
22 
23 /* Safari and Chrome: */
24 #div1 {-webkit-animation-timing-function:linear;}
25 #div2 {-webkit-animation-timing-function:ease;}
26 #div3 {-webkit-animation-timing-function:ease-in;}
27 #div4 {-webkit-animation-timing-function:ease-out;}
28 #div5 {-webkit-animation-timing-function:ease-in-out;}
29 
30 @keyframes mymove
31 {
32 from {left:0px;}
33 to {left:300px;}
34 }
35 
36 @-webkit-keyframes mymove /* Safari and Chrome */
37 {
38 from {left:0px;}
39 to {left:300px;}
40 }
41 </style>
42 </head>
43 <body>
44 
45 <p><strong>注释：</strong>Internet Explorer 9 以及更早的版本不支持 animation-timing-function 属性。</p>
46 
47 <div id="div1">linear</div>
48 <div id="div2">ease</div>
49 <div id="div3">ease-in</div>
50 <div id="div4">ease-out</div>
51 <div id="div5">ease-in-out</div>
52 
53 </body>
54 </html>

 

<!DOCTYPE html>
<html>
<head>
<style> 
div
{
width:100px;
height:50px;
background:red;
color:white;
font-weight:bold;
position:relative;
animation:mymove 5s infinite;
-webkit-animation:mymove 5s infinite; /* Safari and Chrome */
}

#div1 {animation-timing-function:cubic-bezier(0,0,0.25,1);}
#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);}

/* 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);}

@keyframes mymove
{
from {left:0px;}
to {left:300px;}
}

@-webkit-keyframes mymove /* Safari and Chrome */
{
from {left:0px;}
to {left:300px;}
}
</style>
</head>
<body>

<p><strong>注释：</strong>Internet Explorer 9 以及更早的版本不支持 animation-timing-function 属性。</p>

<div id="div1">linear</div>
<div id="div2">ease</div>
<div id="div3">ease-in</div>
<div id="div4">ease-out</div>
<div id="div5">ease-in-out</div>

</body>
</html>

 

      4.animation-delay  规定在动画开始之前的延迟。

      5.animation-iteration-count 规定动画应该播放的次数。

 

css animation 属性


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