ie8兼容圆角
PIE.HTC下载地址：http://css3pie.com/
兼容ie8 代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>border-radius</title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
#header {
width: 400px;
height: 400px;
margin: 10px;
border-radius: 10px;
border: 1px solid red;
/*关键属性设置 需要把路径设置好*/
behavior: url(PIE.htc);
}
</style>
</head>
<body>
<div id="header">
</div>
</body>
</html>