Question

当我单击导航栏切换按钮时，它将打开，然后滑动动画消失。我怎样才能解决这个问题？谢谢

我尝试从引导网站粘贴响应式导航栏代码，并且仍然是同一问题。我还尝试过在关闭body标签之前将booststrap脚本移到页面底部。


<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <link href="style.css" type="text/css" rel="stylesheet">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" 
  integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
</head>
<body>
  <!-- Nagigation -->
  <nav class="navbar navbar-expand-lg navbar-light bg-light">
    <div class="container w-50 ml-0">
      <a class="navbar-brand ml-5" href="#"><img src="images/music logo.png" class="w-25" alt="piano store logo"> Premium Pianos</a>
    </div>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#hello">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse justify-content-center" id="hello">
      <ul class="navbar-nav w-50 justify-content-around">
        <li class="nav-item active">
          <a href="#" class="nav-link">Features</a>
        </li>
        <li class="nav-item">
          <a href="#" class="nav-link">How it works</a>
        </li>
        <li class="nav-item">
          <a href="#" class="nav-link">Pricing</a>
        </li>
      </ul>
    </div>
  </nav>
</body>
</html>

Answer 1

您在寻找这个吗？ w3schools

<!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/4.3.1/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
</head>
<body>

<nav class="navbar navbar-expand-lg bg-dark navbar-dark">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="collapsibleNavbar">
    <ul class="navbar-nav ml-auto">
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>    
    </ul>
  </div>  
</nav>

</body>
</html>

打开后可折叠的导航栏消失

1 个答案: