- <!DOCTYPE html>
- <html>
- <title>W3.CSS</title>
- <meta name="viewport" content="width=device-width, initial-scale=1">
- <link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
- <body>
- <div class="w3-container w3-leftbar w3-pale-blue w3-border-blue">
- <h2>Leftbar</h2>
- <p>The w3-leftbar class adds a thick left border (bar) to an element.</p>
- </div>
- </body>
- </html>