<!doctype>
<html>
<head>
<title></title>
<meta charset="utf-8">
</head>
<style>
.circle {
width: 200px;
height: 200px;
position: absolute;
border-radius: 50%;
background: red;
}
.pie_left, .pie_right {
width: 200px;
height: 200px;
position: absolute;
top: 0;left: 0;
}
.left, .right {
display: block;
width:200px;
height:200px;
background:#00aacc;
border-radius: 50%;
position: absolute;
top: 0;
left: 0;
}
.pie_right, .right {
clip:rect(0,auto,auto,100px);
}
.pie_left, .left {
clip:rect(0,100px,auto,0);
}
.mask {
width: 160px;
height: 160px;
border-radius: 50%;
left: 20px;
top: 20px;
background: #FFF;
position: absolute;
text-align: center;
line-height: 150px;
font-size: 16px;
}
</style>
<script src="js/jquery.js"></script>
<script>
$(function() {
$('.circle').each(function(index, el) {
var num = $(this).find('span').text() * 3.6;
if (num<=180) {
$(this).find('.right').css('transform', "rotate(" + num + "deg)");
} else {
$(this).find('.right').css('transform', "rotate(180deg)");
$(this).find('.left').css('transform', "rotate(" + (num - 180) + "deg)");
};
});
});
</script>
<body>
<div class="circle">
<div class="pie_left">
<div class="left"></div>
</div>
<div class="pie_right">
<div class="right"></div>
</div>
<div class="mask">
<span>10</span>%
</div>
</div>
</body>
</html>
