<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\022B3";
}
</style>
</head>
<body>
<p>Normal Subgroup using Hexa Decimal: ⊳</p>
<p>Normal Subgroup using HTML Code: ⊳</p>
<p>Normal Subgroup using HTML Entity: ⊳</p>
<p id="point">Normal Subgroup using CSS Entity: </p> </body>
</html>