<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
时间: 2023-07-06 19:13:22 浏览: 286
这是一个用于响应式导航栏的 HTML 元素,它是一个折叠的菜单容器,当用户在小屏幕设备上点击导航栏的按钮时,它会展开或折叠菜单项。其中"class"属性指定了该容器应用的样式,"id"属性指定了该容器的唯一标识符,用于在 JavaScript 中操作该元素。
该元素一般与其他导航栏元素结合使用,例如链接、下拉菜单等,例如:
```
<nav class="navbar navbar-default">
<div class="container-fluid">
<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>
<a class="navbar-brand" href="#">Brand</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</div>
</nav>
```
在这个例子中,该元素包含了一个无序列表(ul)和一个表单(form),当用户在小屏幕设备上点击导航栏的按钮时,这些元素会展开或折叠。
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