CSS小圆心图标的制作

html div css代码 如下:

<!DOCTYPE html>
<html>
<head>
	<title></title>
	<style type="text/css">
/*		
	.hot-num {
    display: block;
    width: 18px;
    height: 18px;
    text-indent: 0;
    text-align: center;
    color: #fff;
    cursor: pointer;
    line-height: 18px;
    font-family: MicrosoftYaHei;
    font-size: 12px;
     border-radius: 20px; 
    background-color: #FC561F;
}*/
	</style>
</head>
<body>
<span class="hot-num" style="height: 18px; top: 6px; opacity: 1;display: block;
    width: 18px;
    height: 18px;
    text-indent: 0;
    text-align: center;
    color: #fff;
    cursor: pointer;
    line-height: 18px;
    font-family: MicrosoftYaHei;
    font-size: 12px;
     border-radius: 20px; 
    background-color: #FC561F;">3</span>
</body>
</html>

如下效果: