CSS导圆角，不过这个代码没有怎么看懂，与一般的HTML是不同

<html xmlns:v>
<head><style>V\:*{behavior:url(#default#VML);}</style>
</head>
<body>
<V:RoundRect style="position:relative;width:200px;height:100px">
<V:Shadow on="T" type="single" color="#b3b3b3" offset="5px,5px"/>
<V:textbox style="font-size:9pt">漂亮的圆角!</V:textbox>
</V:RoundRect>
</body>
</html>

漂亮的圆角!