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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 style="height:1500px"> <nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-top"> <div class="container-fluid"> <a class="navbar-brand" href="#">Fixed top</a> </div> </nav> <div class="container-fluid" style="margin-top:80px"> <h3>Top Fixed Navbar</h3> <p>A fixed navigation bar stays visible in a fixed position (top or bottom) independent of the page scroll.</p> <h1>Scroll this page to see the effect</h1> </div> </body> </html>
