<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02087";
}
</style>
</head>
<body>
<p>7 subscript using Hexa Decimal: ₇</p>
<p>7 subscript using HTML Code: ₇</p>
<p id="point">7 subscript using CSS Entity: </p>
</body>
</html>