<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\0213F";
}
</style>
</head>
<body>
<p>Double Struck Capital PI using Hexa Decimal: ℿ</p>
<p>Double Struck Capital PI using HTML Code: ℿ</p>
<p id="point">Double Struck Capital PI using CSS Entity: </p>
</body>
</html>