如何仅在引导移动模式下使用折叠菜单栏

Question

https://s11.postimg.org/a5wieqgkj/navbar.png

嗨，为引导导航栏如何使它只显示折叠菜单(没有品牌名称和背景栏)在小屏幕设备。也就是说，它应该只显示以下内容。https://s8.postimg.org/4npr7uxvp/navbar.png

谢谢。

Answer 1

您可以使用媒体查询来解决这个问题。这就是你要的。你可以随便问我。希望这个答案是你的。

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@media (max-width: 700px) {
  .navbar-header {
    background-color: white;
  }
  nav.navbar {
    border: 0px;
  }
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Home <span class="sr-only">(current)</span></a></li>
        <li><a href="#">About Us</a></li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>
<script
  src="https://code.jquery.com/jquery-3.2.1.js"
  integrity="sha256-DZAnKJ/6XZ9si04Hgrsxu/8s717jcIzLy3oi35EouyE="
  crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

​