Bootstrap导航

可以在 ul 元素上添加 .nav类，在每个 li 选项上添加 .nav-item 类，在每个链接上添加 .nav-link 类:

基本的导航

<div class="container mt-3"><h2>导航</h2><p>简单的水平导航:</p><ul class="nav"><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul></div>

导航对齐方式

默认是左对齐，使用justify-content-center居中对齐，使用justify-content-end则是右对齐

	<div class="container mt-3"><h2>导航</h2><p>左对齐导航 (默认):</p><ul class="nav"><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul><p class="text-center">居中对齐导航:</p><ul class="nav justify-content-center"><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul><p class="text-end">右对齐导航:</p><ul class="nav justify-content-end"><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul></div>

垂直排列

<ul class="nav flex-column">

导航选项卡

使用 .nav-tabs 类可以将导航转化为选项卡。然后对于选中的选项使用 .active 类来标记。

<div class="container mt-3"><h2>选项卡</h2><p>选项卡导航:</p><ul class="nav nav-tabs"><li class="nav-item"><a class="nav-link active" href="#">Active</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul></div>

胶囊导航

.nav-pills类可以将导航项设置成胶囊形状。

<div class="container mt-3"><h2>胶囊</h2><p>胶囊导航:</p><ul class="nav nav-pills"><li class="nav-item"><a class="nav-link active" href="#">Active</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul>
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导航等宽

.nav-justified 类可以设置导航项齐行等宽显示。

    <div class="container mt-3"><h2>导航等宽</h2><p>.nav-justified 类可以设置导航项齐行等宽显示。</p><ul class="nav nav-pills nav-justified"><li class="nav-item"><a class="nav-link active" href="#">Active</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul><br><p>Justified tabs:</p><ul class="nav nav-tabs nav-justified"><li class="nav-item"><a class="nav-link active" href="#">Active</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul></div>

胶囊下拉导航

父级dropdown-menu子集dropdown-item实现下拉

<div class="container mt-3"><h2>胶囊导航带下拉菜单</h2><ul class="nav nav-pills"><li class="nav-item"><a class="nav-link active" href="#">Active</a></li><li class="nav-item dropdown"><a class="nav-link dropdown-toggle" data-bs-toggle="dropdown" href="#">Dropdown</a><ul class="dropdown-menu"><li><a class="dropdown-item" href="#">Link 1</a></li><li><a class="dropdown-item" href="#">Link 2</a></li><li><a class="dropdown-item" href="#">Link 3</a></li></ul></li><li class="nav-item"><a class="nav-link" href="#">Link</a></li><li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li></ul>
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动态切换选项卡

可以在每个链接上添加 data-bs-toggle=“tab” 属性。 然后在每个选项对应的内容的上添加 .tab-pane 类，对应选项卡的内容的 div 标签使用 .tab-content 类 。

如果你希望有淡入效果可以在 .tab-pane 后添加 .fade类:

<div class="container mt-3"><h2>选项卡切换</h2><br><!-- Nav tabs --><ul class="nav nav-tabs" role="tablist"><li class="nav-item"><a class="nav-link active" data-bs-toggle="tab" href="#home">Home</a></li><li class="nav-item"><a class="nav-link" data-bs-toggle="tab" href="#menu1">Menu 1</a></li><li class="nav-item"><a class="nav-link" data-bs-toggle="tab" href="#menu2">Menu 2</a></li></ul><!-- Tab panes --><div class="tab-content"><div id="home" class="container tab-pane active"><br><h3>HOME</h3><p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p></div><div id="menu1" class="container tab-pane fade"><br><h3>Menu 1</h3><p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p></div><div id="menu2" class="container tab-pane fade"><br><h3>Menu 2</h3><p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam.</p></div></div>
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胶囊动态选项卡

<div class="container mt-3"><h2>胶囊选项卡切换</h2><br><!-- Nav pills --><ul class="nav nav-pills" role="tablist"><li class="nav-item"><a class="nav-link active" data-bs-toggle="pill" href="#home">Home</a></li><li class="nav-item"><a class="nav-link" data-bs-toggle="pill" href="#menu1">Menu 1</a></li><li class="nav-item"><a class="nav-link" data-bs-toggle="pill" href="#menu2">Menu 2</a></li></ul><!-- Tab panes --><div class="tab-content"><div id="home" class="container tab-pane active"><br><h3>HOME</h3><p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p></div><div id="menu1" class="container tab-pane fade"><br><h3>Menu 1</h3><p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p></div><div id="menu2" class="container tab-pane fade"><br><h3>Menu 2</h3><p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam.</p></div></div>
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