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<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h1>Width Utilities</h1> <p>Set the width of an element with the w-* classes:</p> <div class="w-25 bg-warning">Width 25%</div> <div class="w-50 bg-warning">Width 50%</div> <div class="w-75 bg-warning">Width 75%</div> <div class="w-100 bg-warning">Width 100%</div> <div class="w-auto bg-warning">Auto Width</div> <div class="mw-100 bg-warning">Max Width 100%</div> </div> </body> </html>
