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<!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/5/w3.css"> <body class="w3-container"> <h2>The w3-mobile Class</h2> <p>The w3-mobile class displays an element as a block on small screens.</p> <div class="w3-cell-row"> <div class="w3-cell w3-container w3-mobile w3-blue"><h3>London</h3></div> <div class="w3-cell w3-container w3-mobile w3-light-blue"><h3>Paris</h3></div> <div class="w3-cell w3-container w3-mobile w3-blue"><h3>Tokyo</h3></div> </div> </body> </html>
