html - Bootstrap 菜单没有下推内容

Question

请原谅我的无知，我是 bootstrap 的新手。我有这段代码需要更正，但我不明白为什么菜单没有在单击时将其余内容向下推。这是 HTML 和 CSS 代码片段

*:before,
   *:after {
     box-sizing: border-box;
   }
   .navbar-default .navbar-toggle {
     border-color: #ddd;
   }
   .navbar-toggle {
     background-color: transparent;
     background-image: none;
     border: 1px solid transparent;
     border-radius: 4px;
     float: right;
     margin-bottom: 8px;
     margin-right: 15px;
     margin-top: 8px;
     padding: 9px 10px;
     position: relative;
   }

<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet" />
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>

<div class="row">
  <div class="col-md-12">
    <nav role="navigation" class="navbar navbar-default">
      <div class="container-fluid">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
          <button data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" class="navbar-toggle" type="button" aria-expanded="true">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a href="#" class="navbar-brand">
            <img alt="Harbor Real Estate" src="img/logo.png">
          </a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div id="bs-example-navbar-collapse-1" class="navbar-collapse collapse in" aria-expanded="true" style="">

          <ul class="nav navbar-nav navbar-right">
            <li><a href="#">About Us</a>
            </li>
            <li><a href="#">Buy</a>
            </li>
            <li><a href="#">Rent</a>
            </li>
            <li><a href="#">Landlords</a>
            </li>
            <li><a href="#">Property Management</a>
            </li>
          </ul>
        </div>
        <!-- /navbar-collapse -->
      </div>
      <!-- /container-fluid -->
    </nav>
  </div>
</div>

Answer 1

我遇到了类似的问题，发现这是由于为包含我的导航栏的 header 标签设置了固定高度。

我通过将特定 CSS 放在媒体查询中来修复它，因此它只适用于较大的屏幕。