本文实例讲述了JS实现图片高亮展示效果的方法。分享给大家供大家参考，具体如下：
昨天朋友让我帮着做个图片高亮展示的效果，虽然不难，不过满有创意的：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>name</title>
<style type="text/css">
*{}{margin:0; padding:0;}
a img{}{border:none;}
#imagesBox {}{ width:165px; height:110px; position:relative; left:100px; top:100px; z-index:1; border:1px solid black; background-color:white;}
#trans{}{ width:165px; height:110px; position:absolute; left:0; top:0; z-index:2; display:none; opacity:0.5; filter:alpha(opacity=50); background-color:black;}
#imagesBox li {}{ width:55px; height:55px; float:left; overflow:hidden;}
#imagesBox li a,#imagesBox li img {}{ width:55px; height:55px; display:block; cursor:pointer;}
#imagesBox li img{}{ position:relative;}
#imagesBox strong{}{position:absolute;left:0; top:50%; margin-top:-7px; z-index:999; display:block; color:white; width:100%; height:15px; text-align:center; z-index:999;}
</style>
<script type="text/javascript">
function gallery(obj){
var tit=obj.getAttribute("alt");
document.getElementById("show_tit").firstChild.nodeValue=tit;
document.getElementById("trans").style.display='block';
obj.style.zIndex="3";
}
function clearBg(obj){
document.getElementById("show_tit").firstChild.nodeValue="";
document.getElementById("trans").style.display='none';
obj.style.zIndex="1";
}
</script>
</head>
<body>
<div id="imagesBox">
<ul>
<li><a href="#" title="名称1"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/UploadFiles/2021-04-02/12053006018793_3.jpg">
刚开始因为没有完全明白设计意图，阴差阳错的做了个这样的效果：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>name</title>
<style type="text/css">
*{margin:0; padding:0;}
a img{border:none;}
#imagesBox { width:165px; height:100px; position:relative; left:100px; top:100px;}
#imagesBox li { width:55px; height:55px; float:left; overflow:hidden; position:relative;}
#imagesBox li img { width:55px; height:55px; position:relative; z-index:2; }
#imagesBox li span { line-height:100px; background:#000; position:absolute; top:0; left:0; z-index:3; opacity:0.5; filter:alpha(opacity=50);
display:block; width:55px; height:55px;}
#imagesBox li a:hover span{display:none;}
#imagesBox strong{position:absolute;left:0; top:50%; margin-top:-7px; z-index:999; display:block; color:white; width:100%; height:15px; text-
align:center;}
</style>
<script type="text/javascript">
function gallery(obj){
var tit=obj.getAttribute("title");
document.getElementById("show_tit").firstChild.nodeValue=tit;
document.getElementById("imagesBox").onmouseout=function(){document.getElementById("show_tit").firstChild.nodeValue="这里显示
名字"};
}
</script>
</head>
<body>
<div id="imagesBox">
<ul>
<li><a href="#" onmouseover="gallery(this);" title="名称1"><img src="/UploadFiles/2021-04-02/12053006018793_3.jpg">
希望本文所述对大家JavaScript程序设计有所帮助。
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