Bootstrap4 导航

如果你想创建一个简单的水平导航栏,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:

实例

<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>

导航对齐方式

.justify-content-center 类设置导航居中显示, .justify-content-end 类设置导航右对齐。

实例

<!-- 导航居中 --> <ul class="nav justify-content-center"> <!-- 导航右对齐 --> <ul class="nav justify-content-end"> </div>

垂直导航

.flex-column 类用于创建垂直导航:

实例

<ul class="nav flex-column">

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。

实例

<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>

胶囊导航

.nav-pills 类可以将导航项设置成胶囊形状。

实例

<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>

导航等宽

.nav-justified 类可以设置导航项齐行等宽显示。

实例

<ul class="nav nav-pills nav-justified">..</ul> <ul class="nav nav-tabs nav-justified">..</ul>

胶囊下拉菜单

实例

<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-toggle="dropdown" href="#">Dropdown</a> <div class="dropdown-menu"> <a class="dropdown-item" href="#">Link 1</a> <a class="dropdown-item" href="#">Link 2</a> <a class="dropdown-item" href="#">Link 3</a> </div> </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>

选项卡下拉菜单

实例

<ul class="nav nav-tabs"> <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-toggle="dropdown" href="#">Dropdown</a> <div class="dropdown-menu"> <a class="dropdown-item" href="#">Link 1</a> <a class="dropdown-item" href="#">Link 2</a> <a class="dropdown-item" href="#">Link 3</a> </div> </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>

动态选项卡

如果你要设置选项卡是动态可切换的,可以在每个链接上添加 data-toggle="tab" 属性。 然后在每个选项对应的内容的上添加 .tab-pane 类。

如果你希望有淡入效果可以在 .tab-pane 后添加 .fade类:

实例

<!-- Nav tabs --> <ul class="nav nav-tabs"> <li class="nav-item"> <a class="nav-link active" data-toggle="tab" href="#home">Home</a> </li> <li class="nav-item"> <a class="nav-link" data-toggle="tab" href="#menu1">Menu 1</a> </li> <li class="nav-item"> <a class="nav-link" data-toggle="tab" href="#menu2">Menu 2</a> </li> </ul> <!-- Tab panes --> <div class="tab-content"> <div class="tab-pane active container" id="home">...</div> <div class="tab-pane container" id="menu1">...</div> <div class="tab-pane container" id="menu2">...</div> </div>

胶囊状动态选项卡

胶囊状动态选项卡只需要将以上实例的代码中 data-toggle 属性设置为 data-toggle="pill":

实例

<!-- Nav pills --> <ul class="nav nav-pills"> <li class="nav-item"> <a class="nav-link active" data-toggle="pill" href="#home">Home</a> </li> <li class="nav-item"> <a class="nav-link" data-toggle="pill" href="#menu1">Menu 1</a> </li> <li class="nav-item"> <a class="nav-link" data-toggle="pill" href="#menu2">Menu 2</a> </li> </ul> <!-- Tab panes --> <div class="tab-content"> <div class="tab-pane active container" id="home">...</div> <div class="tab-pane container" id="menu1">...</div> <div class="tab-pane container" id="menu2">...</div> </div>