<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\00104";
}
</style>
</head>
<body>
<p>Uppercase A Ogonek using Hexa Decimal: Ą</p>
<p>Uppercase A Ogonek using HTML Code: Ą</p>
<p>Uppercase A Ogonek using HTML Entity: Ą</p>
<p id="point">Uppercase A Ogonek using CSS Entity: </p>
</body>
</html>