The animation-duration attribute is used to define the time required for the animation to complete a cycle, in seconds or milliseconds; when the value is 0, it means there is no animation effect.
CSS3 animation-duration property
Function: animation-duration property Defines the time it takes for the animation to complete one cycle, in seconds or milliseconds.
Syntax:
animation-duration: time
time: Specifies the time it takes to complete the animation. The default value is 0, which means no animation effect.
Note: Internet Explorer 9 and earlier versions do not support the animation-duration attribute.
CSS3 animation-duration property usage example
<!DOCTYPE html>
<html>
<head>
<style>
div
{
width:100px;
height:100px;
background:red;
position:relative;
animation:mymove infinite;
animation-duration:2s;
/* Safari and Chrome */
-webkit-animation:mymove infinite;
-webkit-animation-duration:2s;
}
@keyframes mymove
{
from {top:0px;}
to {top:200px;}
}
@-webkit-keyframes mymove /* Safari and Chrome */
{
from {top:0px;}
to {top:200px;}
}
</style>
</head>
<body>
<p><strong>注：</strong>Internet Explorer 9 以及更早的版本不支持 animation-name 属性。</p>
<div></div>
<p><b>注：</b>始终规定 animation-duration 属性，否则时长为 0，就不会播放动画了。</p>
</body>
</html>Rendering:
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