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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="/lib/w3.css"> <style> div { width: 150px; height: 100px; margin: 16px; padding: 16px; } </style> <body> <h2 class="w3-container">Yellow Cards</h2> <div class="w3-card w3-yellow"><p>w3-card</p></div> <div class="w3-card-2 w3-yellow"><p>w3-card-2</p></div> <div class="w3-card-4 w3-yellow"><p>w3-card-4</p></div> <div class="w3-card-8 w3-yellow"><p>w3-card-8</p></div> <div class="w3-card-12 w3-yellow"><p>w3-card-12</p></div> <div class="w3-card-16 w3-yellow"><p>w3-card-16</p></div> <div class="w3-card-24 w3-yellow"><p>w3-card-24</p></div> </body> </html>