<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02135";
}
</style>
</head>
<body>
<p>Alef Symbol using Hexa Decimal: ℵ</p>
<p>Alef Symbol using HTML Code: ℵ</p>
<p>Alef Symbol using HTML Entity: ℵ</p>
<p id="point">Alef Symbol using CSS Entity: </p>
</body>
</html>