三列布局内的可折叠导航

Question

我有一个分为三列的标题，它们是徽标、搜索栏和导航。

我在导航部分关注了这个：https://codepen.io/macsupport/pen/bKFzD，因为我是 bootstrap 的新手，并且还在搞清楚。

当这是桌面大小时，我希望我的菜单水平展开，并且只有当它缩小到平板电脑大小时才将其折叠到菜单图标。

但是，我认为它位于屏幕大小三分之一的列中，因此它总是会被折叠起来。

<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">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>

<header class="fixed-top" id="header">
  <div class="container">
    <div class="row">
      <div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
        <img src="media/logo.png" alt="Logo" class="logo">
      </div>
      <div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
        <form class="form-inline my-2 my-lg-0 search">
          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
          <button class="btn btn-secondary my-2 my-sm-0 orange" type="submit">
            <img src="media/icons/search.png" alt="Search" class="icon">
          </button>
        </form>
      </div>
      <div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
        <nav class="navbar navbar-inverse text-center" role="navigation">
          <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#nav">
              <img src="media/icons/menu.png" alt="Menu" class="icon">
            </button>
          </div>
          <div class="collapse navbar-collapse" id="nav">
            <ul class="nav navbar-nav">
              <li class="nav-item align-middle"><a class="nav-link grey" href="">Home</a></li>
              <li class="nav-item align-middle"><a class="nav-link grey" href="store">Products</a></li>
              <li class="nav-item align-middle"><a class="nav-link grey" href="blog">Blog</a></li>
            </ul>
          </div>
        </nav>
      </div>
    </div>
  </div>
</header>

编辑

有没有办法让它像这张图片一样从实际标题下方的一侧折叠起来

Answer 1

<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">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>

<header class="fixed-top" id="header">
  <div class="container">
    <div class="row">
      <div class="col-lg-2 col-md-2 col-sm-2 col-xs-2">
        <img src="media/logo.png" alt="Logo" class="logo">
      </div>
      <div class="col-lg-5 col-md-5 col-sm-5 col-xs-5">
        <form class="form-inline my-2 my-lg-0 search">
          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
          <button class="btn btn-secondary my-2 my-sm-0 orange" type="submit">
							<img src="media/icons/search.png" alt="Search" class="icon">
						</button>
        </form>
      </div>
      <div class="col-lg-5 col-md-5 col-sm-5 col-xs-5">
        <nav class="navbar navbar-expand-lg navbar-light bg-light">
          <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="#" tabindex="-1" aria-disabled="true">Disabled</a>
              </li>
            </ul>
          </div>
        </nav>
      </div>
    </div>
  </div>
</header>