viewer.js实现图片预览功能

<link rel="stylesheet" type="text/css" href="./viewer.css" />
<script src="./viewer.js" type="text/javascript" charset="utf-8"></script>

<div id="imgBox">
 <div id="imgBoxItem" class="imglist1">
 <img src="image/img-1.jpg" data-imgurl="image/img-1.jpg">
 </div>
 <div id="imgBoxItem" class="imglist2">
 <img src="image/img-2.jpg" data-imgurl="image/img-2.jpg">
 </div>
 <div id="imgBoxItem" class="imglist3">
 <img src="image/img-3.jpg" data-imgurl="image/img-3.jpg">
 </div>
 <div id="imgBoxItem" class="imglist4">
 <img src="image/img-4.jpg" data-imgurl="image/img-4.jpg">
 </div>
</div>

 {
 margin: 0;
 padding: 0;
 list-style: none;
 }

 body {
 background-color: #f5f5f5;
 font-family: 'PingFang SC Regular', 'PingFang SC';
 width: 100%;
 min-width: 320px;
 max-width: 480px;
 -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
 text-shadow: none;
 position: absolute;
 box-sizing: content-box;
 word-break: break-all;

 }

 #imgBox {
 width: 92%;
 margin: 0 auto;
 margin-: 10px;
 display: flex;
 flex-wrap: wrap;
 }

 #imgBoxItem {
 width: 48%;
 margin-left: 1%;
 margin-right: 1%;
 margin-: 1%;
 height: 100px;
 }

 #imgBoxItem img {
 width: 100%;
 height: 100%;
 }

<script type="text/javascript">
 window.onload = function() {
 var viewer = new Viewer(document.getElementById('imgBox'), {
 url: 'data-imgurl'
 });
 }
</script>