jQuery实现图片突出展示（图片阴影案例）
源码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
ul {
list-style: none;
}
body {
background: #000;
}
.wrap {
margin: 100px auto 0;
width: 630px;
height: 394px;
padding: 10px 0 0 10px;
background: #000;
overflow: hidden;
border: 1px solid #fff;
}
.wrap li {
float: left;
margin: 0 10px 10px 0;
}
.wrap img {
display: block;
border: 0;
width: 200px;
height: 200px;
}
</style>
<script src="js/jquery-3.3.1.js" type="text/javascript" charset="utf-8"></script>
<script>
$(function () {
$(".wrap>ul>li").mouseenter(function () {
$(this).css("opacity","1").siblings("li").css("opacity","0.3");
});
$(".wrap").mouseleave(function () {
$(this).find("li").css("opacity",1);
});
});
</script>
</head>
<body>
<div class="wrap">
<ul>
<li><a href="#"><img src="img/1.jpg" alt=""/></a></li>
<li><a href="#"><img src="img/2.jpg" alt=""/></a></li>
<li><a href="#"><img src="img/3.jpg" alt=""/></a></li>
<li><a href="#"><img src="img/4.jpg" alt=""/></a></li>
<li><a href="#"><img src="img/5.jpg" alt=""/></a></li>
<li><a href="#"><img src="img/6.jpg" alt=""/></a></li>
</ul>
</div>
</body>
</html>
效果图：