我有一个引导导航栏，如下所示。它工作正常但是当我最小化窗口时，导航栏变得比最大化窗口上出现的导航栏厚两倍并且切换不显示任何菜单。我感谢任何帮助。谢谢。
<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" integrity="sha512-dTfge/zgoMYpP7QbHy4gWMEGsbsdZeCXz7irItjcC3sPUFtf0kuFbDz/ixG7ArTxmDjLXDmezHubeNikyKGVyQ==" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" integrity="sha384-aUGj/X2zp5rLCbBxumKTCw2Z50WgIr1vs/PFN4praOTvYXWlVyh2UtNUU0KAUhAX" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js" integrity="sha512-K1qjQ+NcF2TYO/eI3M6v8EiNYZfA95pQumfvcVrTHtwQVDG+aHRqLi/ETn2uB+1JqwYqVG3LIvdm9lj6imS/pQ==" crossorigin="anonymous"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<nav role="navigation" class="navbar navbar-inverse">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<a href="index.php" class="navbar-brand">Brand</a>
</div>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<div id="navbarCollapse" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="index.php">Home</a></li>
<li class="dropdown">
<a data-toggle="dropdown" class="dropdown-toggle" href="#">Categories<b class="caret"></b></a>
<ul role="menu" class="dropdown-menu">
<li><a href="index1.php">Index 1</a></li>
<li class="divider"></li>
<li><a href="index2.php">Index 2</a></li>
</ul>
</li>
</ul>
<form role="search" class="navbar-form navbar-right">
<div class="form-group">
<input type="text" placeholder="Search" class="form-control">
</div>
</form>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Login</a></li>
</ul>
</div>
</nav>
最佳答案
要只有一行，您的按钮标签必须位于 div.navbar-header 中 为了正常工作，将您的数据目标更改为“#navbarCollapse”
<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" integrity="sha512-dTfge/zgoMYpP7QbHy4gWMEGsbsdZeCXz7irItjcC3sPUFtf0kuFbDz/ixG7ArTxmDjLXDmezHubeNikyKGVyQ==" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" integrity="sha384-aUGj/X2zp5rLCbBxumKTCw2Z50WgIr1vs/PFN4praOTvYXWlVyh2UtNUU0KAUhAX" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js" integrity="sha512-K1qjQ+NcF2TYO/eI3M6v8EiNYZfA95pQumfvcVrTHtwQVDG+aHRqLi/ETn2uB+1JqwYqVG3LIvdm9lj6imS/pQ==" crossorigin="anonymous"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<nav role="navigation" class="navbar navbar-inverse">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<a href="index.php" class="navbar-brand">Brand</a>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbarCollapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div id="navbarCollapse" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="index.php">Home</a></li>
<li class="dropdown">
<a data-toggle="dropdown" class="dropdown-toggle" href="#">Categories<b class="caret"></b></a>
<ul role="menu" class="dropdown-menu">
<li><a href="index1.php">Index 1</a></li>
<li class="divider"></li>
<li><a href="index2.php">Index 2</a></li>
</ul>
</li>
</ul>
<form role="search" class="navbar-form navbar-right">
<div class="form-group">
<input type="text" placeholder="Search" class="form-control">
</div>
</form>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Login</a></li>
</ul>
</div>
</nav></body></html>
关于html - Bootstrap 导航栏在最小化浏览器时不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33318151/