用相对定位和负向移动完成图片相框阴影

<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <title>用相对定位和负向移动完成图片相框阴影</title>
    <style>
    img {
        max-width: 400px;
    }
    .out {
        width: 420px;
        background: #dddddd;
        position: relative;
        margin: 20px auto
    }
    .in {
        padding: 10px;
        background: #ffffff;
        position: relative;
        top: -5px;
        left: -5px;
        border: 1px solid #000000;
    }
    </style>
</head>
<body>

<div class="out">
    <div class="in">
        <img src="http://ugc.qpic.cn/gbar_pic/AkBkRP2pHckJiaAErLibunyQUvGzrLPo7vEdbqUXEmo9rd24mcq6nPVw/1000" alt="">
    </div>
</div>
    
</body>
</html>

Chorme浏览器的效果:

原文地址:https://www.cnblogs.com/lqcdsns/p/5937950.html