<html>
<head>
<title>DIV层阴影</title>
<style>
.out {
position:relative;
background:#E4E4E4;
margin:8px auto;
width:300px
}
.in {
background:#fff;
border:1px solid #666;
padding:10px 5px;
position:relative;
top:-5px;
left:-5px;
}
</style>
</head>
<body>
<div style="width:298px; margin-left:198px;">
<div class="out">
<div class="in" >CSS相对采用相对定位实现DIV层的投影(阴影)效果</div>
</div>
</div>
<div><A href="http://www.999jiujiu.com/">http://www.999jiujiu.com/</A></div>
</body>
</html>CSS相对定位实现DIV层的投影(阴影)效果
原文：http://blog.csdn.net/life66881/article/details/45370693
