<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
.shadow{
float:left;
margin-left:20px;
background: #EEFF99;
width:200px;
height:400px;
}
.shadow:hover{
-webkit-box-shadow: #ccc 0px 10px 10px;
-moz-box-shadow: #ccc 0px 10px 10px;
box-shadow: #ccc 0px 10px 10px; }
</style>
</head>
<body>
<div class="shadow"></div>
<div class="shadow"></div>
<div class="shadow"></div>
</body>
</html>