<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02293";
}
</style>
</head>
<body>
<p>Square Cap using Hexa Decimal: ⊓</p>
<p>Square Cap using HTML Code: ⊓</p>
<p>Square Cap using HTML Entity: ⊓</p>
<p id="point">Square Cap using CSS Entity: </p>
</body>
</html>