<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02122";
}
</style>
</head>
<body>
<p>Trade Mark Sign using Hexa Decimal: ™</p>
<p>Trade Mark Sign using HTML Code: ™</p>
<p>Trade Mark Sign using HTML Entity: ™</p>
<p id="point">Trade Mark Sign using CSS Entity: </p>
</body>
</html>