CSS content property example at PNLdev

Run
<!DOCTYPE html>
<html>
<head>
<style>
    a::after {
    content: " (" attr(href) ")";
}
</style>
</head>
<body>
    <h1>content property example</h1>
    <p>The content property is used to insert generated content.</p>
    <p>Look at our:</p>
    <p>
    <a href="https://pnldev.com/en/reference/html">HTML Reference</a><br>
    <a href="https://pnldev.com/en/reference/css">CSS Reference</a>
    </p>
</body>
</html>