<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02752";
}
</style>
</head>
<body>
<p>Upper Right Shadowed White Square using Hexa Decimal: ❒</p>
<p>Upper Right Shadowed White Square using HTML Code: ❒</p>
<p id="point">Upper Right Shadowed White Square using CSS Entity: </p>
</body>
</html>