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<!DOCTYPE html> <html> <head> <title>Bootstrap5 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h1>Abbreviations</h1> <p>The abbr element is used to mark up an abbreviation or acronym:</p> <p>The <abbr title="World Health Organization">WHO</abbr> was founded in 1948.</p> </div> </body> </html>
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