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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> <div class="w3-container"> <h2>Hiding Panels</h2> <p>Hiding a panel can be done using an onclick event on a w3-button:</p> </div> <div class="w3-panel w3-danger w3-display-container"> <span class="w3-button w3-large w3-display-topright" onclick="this.parentElement.style.display='none'">×</span> <p>Click the X to close this panel.</p> </div> </body> </html>
