1、属性简介
box-shadow：颜色值|inset|none|!important
2、浏览器兼容性
（1）IE不兼容，IE9和IE10未知；
（2）火狐3.5（包含3.5）以上兼容
（3）Chrome 2.0.x 兼容
（4）Opera不兼容
3、属性实例
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CSS3之box-shadow</title>
<style type="text/css">
body{
animation-name:!important;
animation-play-state:running;
100%;
height:100%;
font-size:14px;
font-variant:normal;
}
#divStyle{
60%;
height:200px;
background-color:#CFC;
font-size-adjust:inherit;
box-shadow:inset;
box-shadow:none;
box-shadow:!important;
-moz-box-shadow:#C00;
-webkit-border-shadow:#306;
}
.tab{
background-color:#FF9;
text-align:center;
100%;
height:100%;
}
</style>
</head>
<body>
<div id="divStyle">
<table class="tab" cellpadding="1" cellspacing="1" border="1">
<tr>
<th rowspan="3"></th>
<th colspan="3"></th>
<th colspan="2" rowspan="2"></th>
<th colspan="2" rowspan="2"></th>
</tr>
<tr>
<th rowspan="2"></th>
<th rowspan="2"></th>
<th rowspan="2"></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
</table>
</div>
</body>
</html>
4、运行结果
