本文实例为大家分享了js实现放大镜效果的具体代码，供大家参考，具体内容如下
该放大区域用背景图片放大
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title></title>
<style type="text/css">
body {
height: 1200px;
background-color: lightskyblue;
}
ul {
margin: 0;
padding: 0;
list-style: none;
}
.itemarea {
position: relative;
width: 500px;
height: 680px;
border: 1px black solid;
margin: 50px auto;
}
.itemarea .pic {
margin-bottom: 15px;
}
.itemarea img {
width: 500px;
height: 600px;
}
.itemarea .pic .cover {
position: absolute;
left: 0;
top: 0;
width: 200px;
height: 200px;
background-image: url(img/7.png);
opacity: 0.6;
display: none;
}
.itemarea .list {
display: flex;
}
.itemarea .list li {
margin: auto;
}
.itemarea .list img {
display: block;
width: 50px;
height: 50px;
}
.itemarea .detail {
position: absolute;
top: 0;
left: 500px;
/* 此处为放大2倍，显示框的大小是遮阴框宽高的2倍 */
width: 400px;
height: 400px;
display: none;
border: 1px black solid;
background: url(img/1.PNG);
/* 此处放大2倍，背景图片的宽高是左边显示图片的2倍 */
background-size: 1000px 1200px;
/* background-size: 200%; 或者这样写*/
}
.itemarea .list .current {
border: 2px green solid;
}
</style>
</head>
<body>
<div class="itemarea">
<div class="pic">
<img src="/UploadFiles/2021-04-02/1.PNG">
效果如下：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。