<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\0223F";
}
</style>
</head>
<body>
<p>Sine Wave using Hexa Decimal: ∿</p>
<p>Sine Wave using HTML Code: ∿</p>
<p>Sine Wave using HTML Entity: ∿</p>
<p id="point">Sine Wave using CSS Entity: </p> </body>
</html>