图片匀速淡入淡出效果如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>淡入效果</title>
<style>
* {
margin: 0;
padding: 0;
}
div {
border: 2px solid #aaa;
}
img {
width: 300px;
height: 300px;
filter: alpha(opacity:30);
opacity: .3;
margin: 0 auto;
}
</style>
</head>
<body>
<div>
<img src="img/timg.jpg" alt="" id="img">
</div>
<script>
var alpha=30;
var img = document.getElementById("img");
img.onmouseover=function(){
startMove(100)
};
img.onmouseout=function(){
startMove(30)
}
var timer;
function startMove(tar) {
var img = document.getElementById("img");
clearInterval(timer);
timer = setInterval(function () {
var ispeed=0;
ispeed= alpha<tar?5:-5;
if(alpha==tar){
clearInterval(timer)
}
else{
alpha+=ispeed;
img.style.filter="alpha(opacity:"+alpha+")";
img.style.opacity=alpha/100;
}
}, 30)
}
</script>
</body>
</html>
声明：本网页内容旨在传播知识，若有侵权等问题请及时与本网联系，我们将在第一时间删除处理。TEL:177 7030 7066 E-MAIL:11247931@qq.com
Copyright © 2019-2024 51dongshi.com 版权所有
违法及侵权请联系：TEL:177 7030 7066 E-MAIL:11247931@qq.com 本站由北京市万商天勤律师事务所王兴未律师提供法律服务
