<!doctype html>
<html>
<head>
<meta charset="utf-8" />
</head>
<title></title>
<style>
.border{width: 100px; height: 100px; border-radius: 50%; background: #000;behavior:url("PIE.htc");}
</style>
<body>
<div class="border"></div>
<script src="js/jquery-1.8.3.min.js"></script>
<script src="js/PIE.js"></script>
<script>
$(function(){
if (window.PIE) {
$(‘.border‘).each(function() {
PIE.attach(this);
});
}
})
</script>
</body>
</html>
原文：http://www.cnblogs.com/zhouyx/p/5310511.html