<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\00332";
}
</style>
</head>
<body>
<p>Low Line using Hexa Decimal: ̲</p>
<p>Low Line using HTML Code: ̲</p>
<p id="point">Low Line using CSS Entity: </p>
</body>
</html>