<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\02666";
}
</style>
</head>
<body>
<p>Black Diamond Suit using Hexa Decimal: ♦</p>
<p>Black Diamond Suit using HTML Code: ♦</p>
<p>Black Diamond Suit using HTML Code: ♦</p>
<p id="point">Black Diamond Suit using CSS Entity: </p>
</body>
</html>