<html><head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script></head><body><div class="container mt-3"> <h1>排版</h1> <p>使用 .lead 类使段落“脱颖而出”：</p> <p class="lead">This paragraph stands out.</p> <p>This is a regular paragraph.</p></div></body></html>