<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02236";
}
</style>
</head>
<body>
<p>Ratio using Hexa Decimal: ∶</p>
<p>Ratio using HTML Code: ∶</p>
<p>Ratio using HTML Entity: ∶</p>
<p id="point">Ratio using CSS Entity: </p>
</body>
</html>