CSS3 動畫方向
CSS3的animation-direction屬性詳解:
此屬性用于設(shè)置animation動畫是否可以反向運動。
更多關(guān)于animation屬性內(nèi)容可以參閱CSS3的animation屬性用法詳解一章節(jié)。?
語法結(jié)構(gòu):
animation-direction：normal | alternate [ , normal | alternate ]*
參數(shù)解析:
1.normal:動畫正常方向運行。
2.alternate:正常方向與反方向交替。
特別說明:
如果提供多個屬性值，以逗號進(jìn)行分隔。?
對應(yīng)的腳本特性為animationDirection。
代碼實例:
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://ipnx.cn/" />
<title>php中文網(wǎng)</title>
<style type="text/css">
div{
width:100px;
height:100px;
background:red;
position:relative;
animation:theanimation 5s infinite;
-webkit-animation:theanimation 5s infinite;
-moz-animation:theanimation 5s infinite;
-o-animation:theanimation 5s infinite;
-ms-animation:theanimation 5s infinite;
animation-direction:alternate;
-webkit-animation-direction:alternate;
-moz-animation-direction:alternate;
-o-animation-direction:alternate;
-ms-animation-direction:alternate;
}
@keyframes theanimation{
0% {left:0px;}
100% {left:200px;}
}
@-webkit-keyframes theanimation{
0% {left:0px;}
100% {left:200px;}
}
@-moz-keyframes theanimation{
0% {left:0px;}
100% {left:200px;}
}
@-o-keyframes theanimation{
0% {left:0px;}
100% {left:200px;}
}
@-ms-keyframes theanimation{
0% {left:0px;}
100% {left:200px;}
}
</style>
</head>
<body>
<div></div>
</body>
</html>以上代碼可以設(shè)置動畫正常方向與反方向交替運動。
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://ipnx.cn/" />
<title>php中文網(wǎng)</title>
<style type="text/css">
div{
width:100px;
height:100px;
background:red;
position:relative;
animation:firstanimation 5s infinite,secondanimation 2s infinite;
-webkit-animation:firstanimation 5s infinite,secondanimation 2s infinite;
-moz-animation:firstanimation 5s infinite,secondanimation 2s infinite;
-o-animation:firstanimation 5s infinite,secondanimation 2s infinite;
-ms-animation:firstanimation 5s infinite,secondanimation 2s infinite;
animation-direction:alternate,normal;
-webkit-animation-direction:alternate,normal;
-moz-animation-direction:alternate,normal;
-o-animation-direction:alternate,normal;
-ms-animation-direction:alternate,normal;
}
@keyframes firstanimation{
0% {left:0px;}
100% {left:200px;}
}
@-webkit-keyframes firstanimation{
0% {left:0px;}
100% {left:200px;}
}
@-moz-keyframes firstanimation{
0% {left:0px;}
100% {left:200px;}
}
@-o-keyframes firstanimation{
0% {left:0px;}
100% {left:200px;}
}
@-ms-keyframes firstanimation{
0% {left:0px;}
100% {left:200px;}
}
@keyframes secondanimation{
0% {top:0px;}
100% {top:200px;}
}
@-webkit-keyframes secondanimation{
0% {top:0px;}
100% {top:200px;}
}
@-moz-keyframes secondanimation{
0% {top:0px;}
100% {top:200px;}
}
@-o-keyframes secondanimation{
0% {top:0px;}
100% {top:200px;}
}
@-ms-keyframes secondanimation{
0% {top:0px;}
100% {top:200px;}
}
</style>
</head>
<body>
<div></div>
</body>
</html>
以上代碼可以分別設(shè)置兩個動畫一個是兩個方向交替運行，一個只能夠以正常方向運行。
