<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\0003A";
}
</style>
</head>
<body>
<p>Colon using Hexa Decimal: :</p>
<p>Colon using HTML Code: :</p>
<p>Colon using HTML Entity: :</p>
<p id="point">Colon using CSS Entity: </p>
</body>
</html>