<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\021CA";
}
</style>
</head>
<body>
<p>Downward paired Arrows using Hexa Decimal: ⇊</p>
<p>Downward paired Arrows using HTML Code: ⇊</p>
<p>Downward paired Arrows using HTML Entity: ⇊</p>
<p id="point">Downward paired Arrows using CSS Entity: </p>
</body>
</html>