Bootstrap 导航栏
Bootstrap导航栏
导航栏就像放在页面顶部的导航标题一样。您可以根据屏幕尺寸折叠或扩展它。
您可以使用 在页面顶部创建标准导航栏。
请参见以下示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Case</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">WebSiteName</a>
</div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#">Page 1</a></li>
<li><a href="#">Page 2</a></li>
<li><a href="#">Page 3</a></li>
</ul>
</div>
</nav>
<div class="container">
<h3>Basic Navbar Example</h3>
<p>A navigation bar is a navigation header that is placed at the top of the page.</p>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
</html>
Bootstrap反向导航栏
反向导航栏提供了另一种黑色导航栏。通过将 .navbar-default类更改为 .navbar-inverse类,可用于设置默认导航栏的样式。
查看此例如:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Case</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">WebSiteName</a>
</div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#">Page 1</a></li>
<li><a href="#">Page 2</a></li>
<li><a href="#">Page 3</a></li>
</ul>
</div>
</nav>
<div class="container">
<h3>Inverted Navbar</h3>
<p>An inverted navbar is black instead of gray.</p>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
</html>
带有下拉菜单的Bootstrap导航栏
您还可以添加带有导航栏的下拉菜单。以下示例为"第1页"按钮添加了一个下拉菜单。
请参见以下示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Case</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">WebSiteName</a>
</div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#">Page 1 <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Page 1-1</a></li>
<li><a href="#">Page 1-2</a></li>
<li><a href="#">Page 1-3</a></li>
</ul>
</li>
<li><a href="#">Page 2</a></li>
<li><a href="#">Page 3</a></li>
</ul>
</div>
</nav>
<div class="container">
<h3>Navbar With Dropdown</h3>
<p>this example adds a dropdown menu for the "Page 1" button in the navigation bar.</p>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
</html>
Bootstrap 右对齐导航栏
使用 .navbar-right class 右对齐导航栏按钮。在以下示例中,我们在导航栏中向右侧添加了"注册"和"登录"按钮。
请参见以下示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Case</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">WebSiteName</a>
</div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#">Page 1 <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Page 1-1</a></li>
<li><a href="#">Page 1-2</a></li>
<li><a href="#">Page 1-3</a></li>
</ul>
</li>
<li><a href="#">Page 2</a></li>
<li><a href="#">Page 3</a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#"><span class="glyphicon glyphicon-user"></span> Sign Up</a></li>
<li><a href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
</ul>
</div>
</nav>
<div class="container">
<h3>Right Aligned Navbar</h3>
<p>The .navbar-right class is used to right-align navigation bar buttons.</p>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
</html>
基本导航栏
在Bootstrap 4中,您可以根据屏幕尺寸来扩展或折叠导航栏。使用.navbar类创建一个标准导航栏,然后创建一个响应式折叠类: .navbar-expand-xl | lg | md | sm(将导航栏垂直堆叠在超大,大,中或小屏幕上)。
要在导航栏中添加链接,请使用元素和class ="navbar-nav"。然后添加具有.nav-item类的元素,然后添加具有.nav-link类的元素。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container-fluid">
<h3>Basic Navbar Example</h3>
<p>A navigation bar is a navigation header that is placed at the top of the page.</p>
</div>
<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>
</body>
</html>
垂直导航栏
如果要创建垂直导航栏,请删除.navbar-expand-xl | lg | md | sm类。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container-fluid">
<h3>Vertical Navbar Example</h3>
<p>A navigation bar is a navigation header that is placed at the top of the page.</p>
</div>
<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>
</body>
</html>
彩色导航栏
您可以使用任何.bg-color类来更改导航栏的背景颜色(.bg-primary,.bg-success, .bg-info,.bg-warning,.bg-danger,.bg-secondary,.bg-dark和.bg-light)。
注意: 使用.navbar-dark类向导航栏中的所有链接添加白色文本颜色,或使用.navbar-light类添加黑色文本颜色。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h3>Colored Navbar Example</h3>
</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/徽标
.navbar-brand类用于突出显示页面的品牌/徽标/项目名称。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/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>Brand / Logo</h3>
</div>
</body>
</html>
如果在图像上使用.navbar-brand类,Bootstrap 4将自动设置图像样式以适合导航条。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/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="image" 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>Brand / Logo</h3>
</div>
</body>
</html>
导航栏形式和按钮
带有class ="form-inline"的
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-expand-sm bg-dark navbar-dark">
<form class="form-inline" action="/action_page.php">
<input class="form-control" type="text" placeholder="Search">
<button class="btn btn-success" type="submit">Search</button>
</form>
</nav>
<br>
<div class="container">
<h3>Navbar Forms</h3>
<p>Use the .form-inline class to align form elements side by side inside the navbar.</p>
</div>
</body>
</html>
您还可以使用其他输入类,例如.input-group-addon在输入字段旁边附加图标或帮助文本。您将在" Bootstrap输入"一章中了解有关这些类的更多信息。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/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>Navbar Forms</h3>
<p>Use the .form-inline class to align form elements side by side inside the navbar.</p>
</div>
</body>
</html>
导航栏文本
.navbar-text类用于垂直对齐导航栏中的所有非链接元素。您必须确保正确的填充和文本颜色。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/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>Navbar Text</h3>
</div>
</body>
</html>
固定的导航栏
您可以将导航栏固定在页面的顶部或底部。固定导航栏在固定位置(顶部或底部)保持可见,而无需依赖页面滚动。
顶部固定导航栏
.fixed-top类将导航栏固定在顶部。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/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>Top Fixed Navbar</h3>
</div>
</body>
</html>
底部固定导航栏
.fixed-bottom类用于使导航栏停留在页面底部。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/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"><br>
<h3>Bottom Fixed Navbar</h3>
<h1>Scroll this page to see the effect</h1>
</div>
</body>
</html>
粘性导航栏
滚动浏览时,粘性导航栏固定在页面顶部。您可以通过滚动此页面来查看效果。
注意: 此功能在IE11和更早版本中不起作用。
示例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
</head>
<body style="height:1500px">
<div class="container-fluid">
<br>
<h3>Sticky Navbar</h3>
<p>You can see the effect by scrolling this page.</p>
<p><strong>Note:</strong> this facility doesn't work in IE11 and earlier version. </p>
</div>
<nav class="navbar navbar-expand-sm bg-dark navbar-dark sticky-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"><br>
<p>Some example text. Some example text. Some example text. Some example text. Some example text.</p>
<p>Some example text. Some example text. Some example text. Some example text. Some example text.</p>
<p>Some example text. Some example text. Some example text. Some example text. Some example text.</p>
<p>Some example text. Some example text. Some example text. Some example text. Some example text.</p>
</div>
</body>
</html>