Question

我正在尝试将bootstrap嵌入到html文件中。我直接从他们的网站复制并粘贴了链接，并嵌入了最新版本的jQuery。字体样式似乎是正确的，但导航栏和其他类无法正常工作。下面是我的代码以及结果的屏幕截图。

<!DOCTYPE html>
        
        <html lang="en">
        
        <head>
    
        <meta charset="utf-8">
    
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
    
        <meta name="viewport" content="width=device-width, initial-scale=1">
    
        <title>Bootstrap 101 Template</title>
    
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
    
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
    
          </head>
        
          <body>
        
            <h1>Hello, world!</h1>
        
            <nav class="navbar navbar-expand-lg navbar-light bg-light">
              <a class="navbar-brand" href="#">Navbar</a>
              <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                <span class="navbar-toggler-icon"></span>
              </button>
        
              <div class="collapse navbar-collapse" id="navbarSupportedContent">
                <ul class="navbar-nav mr-auto">
                  <li class="nav-item active">
                    <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
                  </li>
                  <li class="nav-item">
                    <a class="nav-link" href="#">Link</a>
                  </li>
                  <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                      Dropdown
                    </a>
                    <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                      <a class="dropdown-item" href="#">Action</a>
                      <a class="dropdown-item" href="#">Another action</a>
                      <div class="dropdown-divider"></div>
                      <a class="dropdown-item" href="#">Something else here</a>
                    </div>
                  </li>
                  <li class="nav-item">
                    <a class="nav-link disabled" href="#">Disabled</a>
                  </li>
                </ul>
                <form class="form-inline my-2 my-lg-0">
                  <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
                  <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
                </form>
              </div>
            </nav>
        
            <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
           
            <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
        
          </body>
        
        </html>

导航栏是我直接从bootstrap的文档中复制的。

另外，如您所见，控制台中没有错误

Answer 1

您意外地复制了一个Bootstrap主题而不是实际的bootstrap：）

尝试在https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_navbar&stacked=h中使用CDN。这似乎工作正常。

＆＃13;

<!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 rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>

<body>

  <nav class="navbar navbar-default">
    <div class="container-fluid">
      <div class="navbar-header">
        <a class="navbar-brand" href="#">WebSiteName</a>
      </div>
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Home</a></li>
        <li><a href="#">Page 1</a></li>
        <li><a href="#">Page 2</a></li>
        <li><a href="#">Page 3</a></li>
      </ul>
    </div>
  </nav>

  <div class="container">
    <h3>Basic Navbar Example</h3>
    <p>A navigation bar is a navigation header that is placed at the top of the page.</p>
  </div>

</body>

</html>

＆＃13;

或仅用于<head></head>导入

＆＃13;

<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>

＆＃13;

Bootstrap CDN无法正常工作

1 个答案: