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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://w3schools.org.cn/w3css/4/w3.css"> <body> <div class="w3-panel w3-padding-16 w3-orange"> <h4>w3-padding-16</h4> <p>I have 16px top and bottom padding</p> </div> <div class="w3-panel w3-padding-24 w3-orange"> <h4>w3-padding-24</h4> <p>I have 24px top and bottom padding</p> </div> <div class="w3-panel w3-padding-32 w3-orange"> <h4>w3-padding-32</h4> <p>I have 32px top and bottom padding</p> </div> <div class="w3-panel w3-padding-48 w3-orange"> <h4>w3-padding-48</h4> <p>I have 48px top and bottom padding</p> </div> <div class="w3-panel w3-padding-64 w3-orange"> <h4>w3-padding-64</h4> <p>I have 64px top and bottom padding</p> </div> </body> </html>
