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<!DOCTYPE html>
<html lang="zh" class="svg no-js">
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="../../maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
  <script src="../../ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
  <script src="../../maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
  <style>
    /* Remove the navbar's default margin-bottom and rounded borders */ 
    .navbar {
      margin-bottom: 0;
      border-radius: 0;
    }
    
    /* Add a gray background color and some padding to the footer */
    footer {
      background-color: #f2f2f2;
      padding: 25px;
    }
  </style>
</head>
<body>
<nav class="navbar navbar-inverse">