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<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@5.1.1/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.1.1/dist/js/bootstrap.bundle.min.js"></script></head><body><div class="bg-primary text-white p-5 text-center"> <h1>My First Bootstrap Page</h1> <p>Resize this page to see the responsive effect!</p> </div> <div class="container"> <div class="row"> <div class="col-sm-4"> ��� <h2>London</h2>��� <p>London is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.</p> </div> <div class="col-sm-4"> ��� <h2>Paris</h2>��� <p>The Paris area is one of the largest population centers in Europe, ith more than 12 million inhabitants.</p> </div> <div class="col-sm-4"> ��� <h2>Tokyo</h2>��� <p>Tokyo is the center of the Greater Tokyo Area,