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<html><head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/css/bootstrap.min.css"> <script src="https://cdn.jsdelivr.net/npm/jquery@3.7.1/dist/jquery.slim.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/js/bootstrap.bundle.min.js"></script></head><body><div class="container"> <h2>Typography</h2> <p>The <abbr title="World Health Organization">WHO</abbr> was founded in 1948. (normal abbr)</p> <p>The <abbr title="World Health Organization" class="initialism">WHO</abbr> was founded in 1948. (slightly smaller abbr)</p></div></body></html>