Bootstrap4 导航栏
发布时间：2020-12-17 20:49:53 所属栏目：安全 来源：网络整理
导读：导航栏一般放在页面的顶部。我们可以使用 .navbar 类来创建一个标准的导航栏，后面紧跟: .navbar-expand-xl|lg|md|sm 类来创建响应式的导航栏 (大屏幕水平铺开，小屏幕垂直堆叠)。导航栏上的选项可以使用 ul 元素并添加 class="navbar-nav" 类。 然后在 li
导航栏一般放在页面的顶部。 我们可以使用 .navbar 类来创建一个标准的导航栏，后面紧跟: .navbar-expand-xl|lg|md|sm 类来创建响应式的导航栏 (大屏幕水平铺开，小屏幕垂直堆叠)。 导航栏上的选项可以使用 <ul> 元素并添加 class="navbar-nav" 类。 然后在 <li> 元素上添加 .nav-item 类， <a> 元素上使用 .nav-link 类: <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-light"> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="#">Link 1</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 3</a> </li> </ul> </nav> <br> <div class="container-fluid"> <h3>简单的导航栏实例</h3> <p>导航栏一般放在页面的顶部。</p> <p>我们可以使用 .navbar 类来创建一个标准的导航栏，后面紧跟: .navbar-expand-xl|lg|md|sm 类来创建响应式的导航栏 (大屏幕水平铺开，小屏幕垂直堆叠)。</p> </div> </body> </html> 垂直导航栏 通过删除 .navbar-expand-xl|lg|md|sm 类来创建垂直导航栏: <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar bg-light"> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="#">Link 1</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 3</a> </li> </ul> </nav> <br> <div class="container-fluid"> <h3>垂直导航栏</h3> <p>导航栏一般在页面头部。</p> </div> </body> </html> 不同颜色导航栏 可以使用以下类来创建不同颜色导航栏：.bg-primary,.bg-success,.bg-info,.bg-warning,.bg-danger,.bg-secondary,.bg-dark 和 .bg-light)。 提示: 对于暗色背景需要设置文本颜色为浅色的，对于浅色背景需要设置文本颜色为深色的。 激活和禁用状态: 可以在 <a> 元素上添加 .active 类来高亮显示选中的选项。 .disabled 类用于设置该链接是不可点击的。 <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h3>不同颜色导航栏</h3> <p>对于暗色背景需要设置文本颜色为浅色的，对于浅色背景需要设置文本颜色为深色的。</p> </div> <nav class="navbar navbar-expand-sm bg-light navbar-light"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-primary navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-success navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-info navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-warning navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-danger navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> <nav class="navbar navbar-expand-sm bg-secondary navbar-dark"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link" 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> </nav> </body> </html> 品牌/Logo .navbar-brand 类用于高亮显示品牌/Logo: <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <!-- Brand/logo --> <a class="navbar-brand" href="#">Logo</a> <!-- Links --> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="#">Link 1</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 3</a> </li> </ul> </nav> <div class="container-fluid"> <h3>品牌/Logo</h3> <p>.navbar-brand 类用于高亮显示品牌/Logo:</p> </div> </body> </html> 如果使用图片，可以使用 .navbar-brand 类来设置图片自适应导航栏。 <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <!-- Brand/logo --> <a class="navbar-brand" href="#"> <img src="http://static.runoob.com/images/mix/bird.jpg" alt="logo" style="width:40px;"> </a> <!-- Links --> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="#">Link 1</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 3</a> </li> </ul> </nav> <div class="container-fluid"> <h3>品牌 / Logo</h3> <p>果使用图片，可以使用 .navbar-brand 类来设置图片自适应导航栏。</p> </div> </body> </html> 折叠导航栏 通常，小屏幕上我们都会折叠导航栏，通过点击来显示导航选项。 要创建折叠导航栏，可以在按钮上添加 class="navbar-toggler",data-toggle="collapse" 与 data-target="#thetarget" 类。然后在设置了 class="collapse navbar-collapse" 类的 div 上包裹导航内容（链接）,div 元素上的 id 匹配按钮 data-target 的上指定的 id: <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-md bg-dark navbar-dark"> <a class="navbar-brand" href="#">Navbar</a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="collapsibleNavbar"> <ul class="navbar-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> </ul> </div> </nav> <br> <div class="container"> <h3>折叠导航栏</h3> <p>通常，小屏幕上我们都会折叠导航栏，通过点击来显示导航选项。</p> <p>提示: 如果你删除 .navbar-expand-md 类，导航链接会一直隐藏，且切换按钮会一直显示。</p> </div> </body> </html> 导航栏使用下拉菜单 导航栏上可以设置下拉菜单： <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <!-- Brand --> <a class="navbar-brand" href="#">Logo</a> <!-- Links --> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="#">Link 1</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li> <!-- Dropdown --> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown"> Dropdown link </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> </ul> </nav> <br> <div class="container"> <h3>导航栏使用下拉菜单</h3> <p>导航栏上可以设置下拉菜单。</p> </div> </body> </html> 导航栏的表单与按钮 导航栏的表单 <form> 元素使用 class="form-inline" 类来排版输入框与按钮： <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <form class="form-inline"> <input class="form-control" type="text" placeholder="Search"> <button class="btn btn-success" type="button">Search</button> </form> </nav> <br> <div class="container"> <h3>导航栏的表单</h3> <p>导航栏的表单 form 元素使用 class="form-inline" 类来排版输入框与按钮：</p> </div> </body> </html> 你也可以使用其他的输入框类，如 .input-group-addon 类用于在输入框前添加小标签。 <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <form class="form-inline"> <div class="input-group"> <span class="input-group-addon">@</span> <input type="text" class="form-control" placeholder="Username"> </div> </form> </nav> <br> <div class="container"> <h3>导航表单</h3> <p> .input-group-addon 类用于在输入框前添加小标签。</p> </div> </body> </html> 导航栏文本 使用 .navbar-text 类来设置导航栏上非链接文本，可以保证水平对齐，颜色与内边距一样。 <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <nav class="navbar navbar-expand-sm bg-dark navbar-dark"> <!-- Links --> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="#">Link 1</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li> </ul> <!-- Navbar text--> <span class="navbar-text"> Navbar text </span> </nav> <br> <div class="container"> <h3>导航栏文本</h3> <p>使用 .navbar-text 类来设置导航栏上非链接文本，可以保证水平对齐，颜色与内边距一样。</p> </div> </body> </html> 固定导航栏 导航栏可以固定在头部或者底部。 我们使用 .fixed-top 类来实现导航栏的固定： <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body style="height:1500px"> <nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-top"> <a class="navbar-brand" href="#">Logo</a> <ul class="navbar-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> </ul> </nav> <div class="container-fluid" style="margin-top:80px"> <h3>固定导航栏</h3> <p>导航栏可以固定在头部或者底部。</p> <h1>滚动页面查看效果。</h1> </div> </body> </html> .fixed-bottom 类用于设置导航栏固定在底部： <!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body style="height:1500px"> <nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-bottom"> <a class="navbar-brand" href="#">Logo</a> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="javascript:void(0)">Link</a> </li> <li class="nav-item"> <a class="nav-link" href="javascript:void(0)">Link</a> </li> </ul> </nav> <div class="container-fluid"> <h3>底部固定导航栏</h3> <p>导航栏可以固定在头部或者底部。</p> <h1>滚动页面查看效果。</h1> </div> </body> </html> （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
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