【发布时间】：2018-12-19 13:49:09
【问题描述】：
我正在构建应在所有设备上响应的单页应用程序。到目前为止一切正常，但有一件事引起了我的注意。当lg 和md 屏幕大小时，主屏幕上的选项卡水平显示。如果我在浏览器中打开Responsive Design Mode，它们会垂直显示。该演示文稿在屏幕上占用了大量空间。我想知道它们是否可以显示为用户可以单击并选择选项卡的可折叠按钮？这将节省屏幕上的一些空间，并且肯定看起来更好。这是我到目前为止的示例：
.navbar-brand {
padding: 0px;
}
.navbar-brand>img {
height: 100%;
min-height: 45px;
padding: 5px;
width: auto;
}
.brand2 {
height: 100%;
height: 50px;
padding: 5px;
margin-left: 5px;
width: auto;
display: block;
}
.my-jumbotron {
padding-top: 45px;
padding-bottom: 10px;
margin-bottom: 5px;
background-color: #333;
color: #fff;
}
.page-footer {
margin-bottom: 5px;
background-color: #333;
border-radius: 6px;
padding: 5px;
color: #fff;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Single Page Application</title>
<link rel="icon" type="image/x-icon" href="images/favicon.ico" />
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>
<body>
<nav id="myNavbar" class="navbar navbar-default navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<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 class="row">
<div class="col-xs-4 col-sm-6">
<a class="navbar-brand" data-toggle="tooltip" data-placement="top" title="MyApp home page" href="https://www.example.com" target="_blank"><img class="img-rounded" src="images/logo.png" alt="MyApp" /></a>
</div>
<div class="col-xs-4 col-md-6">
<img class="img-rounded brand2" src="images/app.jpg" alt="Img" />
</div>
</div>
</div>
<div class="collapse navbar-collapse" id="navbarCollapse">
<ul class="nav navbar-nav" id="nav_menu">
<li><a href="#" data-id="home">Home</a></li>
<li><a href="#" data-id="contact">Contact</a></li>
<li><a href="#" data-id="help">Help</a></li>
</ul>
</div>
</div>
</nav>
<div class="container">
<div class="jumbotron my-jumbotron">
<h2>Single Page Application</h2>
</div>
<div id="main_container">
<ul class="nav nav-tabs nav-justified">
<li class="active"><a data-toggle="tab" href="#tab1">Tab 1</a></li>
<li><a data-toggle="tab" href="#tab2">Tab 2</a></li>
<li><a data-toggle="tab" href="#tab3">Tab 3</a></li>
<li><a data-toggle="tab" href="#tab4">Tab 4</a></li>
</ul>
<div class="tab-content">
<div id="tab1" class="tab-pane my-tab-pane fade in active">
<h3>Tab 1</h3>
<p>Show tab 1.</p>
</div>
<div id="tab2" class="tab-pane my-tab-pane fade">
<h3>Tab 2</h3>
<p>Show tab 2.</p>
</div>
<div id="tab3" class="tab-pane my-tab-pane fade">
<h3>Tab 3</h3>
<p>Show tab 3.</p>
</div>
<div id="tab4" class="tab-pane my-tab-pane fade">
<h3>Tab 4</h3>
<p>Show tab 4.</p>
</div>
</div>
<div class="row">
<div class="col-sm-12">
<footer class="page-footer">
<div class="container-fluid">
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-2 col-lg-2">
<a href="http://example1.com" data-toggle="tooltip" data-placement="top" title="example1.com">Example1.com</a>
</div>
<div class="col-xs-12 col-sm-12 col-md-2 col-lg-2">
<a href="http://example2.com/" data-toggle="tooltip" data-placement="top" title="example2.com">Example2.com</a>
</div>
<div class="col-xs-12 col-sm-12 col-md-2 col-lg-2">
<a href="http://example3.com/" data-toggle="tooltip" data-placement="top" title="example3.com">Example3.com</a>
</div>
<div class="col-xs-12 col-sm-12 col-md-2 col-lg-2">
<a href="http://example4.com/" data-toggle="tooltip" data-placement="top" title="example4.com">Example4.com</a>
</div>
</div>
</div>
</footer>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</body>
</html>如果您查看上面的示例，您会看到标签相互重叠。如果您看一下右上角，您会看到可以单击的按钮。然后你会得到菜单中的项目列表Home、Contact 或Help。我想在小屏幕上的标签有类似的东西。如果有人知道实现这一目标的好方法，请告诉我。
【问题讨论】：
标签： jquery html css twitter-bootstrap twitter-bootstrap-3