Bootstrap 5 Navbar has an amazing feature that makes it very innovatively responsive to different screen and viewport sizes which is its transformation into the Toggler. The elements' visibility in the navbar can be toggled with the use of a toggler in the Navbar. To control when their information collapses behind a button, navigation bars use the classes .navbar-toggler,.navbar-collapse, and .navbar-expand[-sm|-md|-lg|-xl|-xxl]. Also, the screen size or viewport size at which the contents will be hidden is completely customizable.
Bootstrap 5 Navbar Responsive behaviors Toggler Syntax:
<nav class="navbar">
<button class="navbar-toggler" type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarToggle">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse" id="navbarToggle">
<!-- Navbar Content Goes Here --!>
</div>
</nav>
Bootstrap 5 Navbar Responsive behaviors Toggler Used Classes:
- navbar-toggler: Used to determine which button exactly is used as the toggler to toggle the navbar when the viewport precedes the predetermined size.
- collapse: Used to add the Collapse functionality to the navbar which adds the feature to expand and collapse.
Example 1: The code below demonstrates how we can add a Responsive behaviors Toggler in a Navbar with a dropdown:
<!doctype html>
<html lang="en">
<head>
<link rel="stylesheet" href=
"https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src=
"https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js">
</script>
</head>
<body class="m-3">
<h1 class="ms-5 text-success">
GeeksforGeeks
</h1>
<h4 class="ms-5">
Bootstrap 5 Navbar Responsive behaviors Toggler
</h4>
<nav class="navbar navbar-expand-md
navbar-dark bg-dark">
<div class="container-fluid">
<button class="navbar-toggler"
type="button" data-bs-toggle="collapse"
data-bs-target="#navbarToggler">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarToggler">
<a class="navbar-brand" href="#">Navbar</a>
<div class="dropdown">
<button class="btn btn-success dropdown-toggle"
type="button" data-bs-toggle="dropdown">
Topics
</button>
<ul class="dropdown-menu dropdown-menu-dark"
aria-labelledby="dropdownMenuButton2">
<li class="nav-item">
<a class="nav-link" href="#">DS</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Algorithms</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">C++</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">BootStrap 5</a>
</li>
</ul>
</div>
</div>
</div>
</nav>
</body>
</html>
Output:
Example 2: The code below demonstrates how we can add Responsive behaviors Toggler in a Navbar which has Scrollspy:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content=
"width=device-width, initial-scale=1">
<link rel="stylesheet" href=
"https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src=
"https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js">
</script>
<script>
$(function(){
$('#work').on('activate.bs.scrollspy')
});
</script>
</head>
<body style='position: relative' class="m-3">
<nav class="navbar navbar-expand-md
navbar-dark bg-dark">
<div class="container-fluid">
<button class="navbar-toggler" type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarToggler"
aria-controls="navbarToggler"
aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse"
id="navbarToggler">
<a class="navbar-brand" href="#">
Hidden Navbar
</a>
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active"
aria-current="page"
href="#dataStructs">
Data Structures
</a>
</li>
<li class="nav-item">
<a class="nav-link active"
aria-current="page"
href="#algo">
Algorithms
</a>
</li>
<li class="nav-item">
<a class="nav-link active"
aria-current="page"
href="#bootstrap">
BootStrap
</a>
</li>
<li class="nav-item">
<a class="nav-link active"
aria-current="page"
href="#cpp">
CPP
</a>
</li>
</ul>
</div>
</div>
</nav>
<h1 class="ms-5 text-success">
GeeksforGeeks
</h1>
<h4 class="ms-5">
Bootstrap 5 Navbar Responsive behaviors Toggler
</h4>
<div class="container-fluid p-5 pt-2"
data-spy="scroll" data-target="#scrollspy"
data-offset="50">
<div class="">
<div id="dataStructs">
<h2>Data Structures</h2>
<p>
A data structure is a group of data elements
that provides the easiest way to store and
perform different actions on the data of the computer.
A data structure is a particular way of organizing
data in a computer so that it can be used effectively.
The idea is to reduce the space and time complexities
of different tasks. The choice of a good data structure
makes it possible to perform a variety of critical
operations effectively. An efficient data structure
also uses minimum memory space and execution time
to process the structure.
</p>
</div>
<div id="algo">
<h2>Algorithms</h2>
<p>
The word Algorithm means â
A set of finite rules or instructions to be followed
in calculations or other problem-solving operations
â Or â A procedure for solving a mathematical problem
in a finite number of steps that frequently involves
recursive operationsâ.It can be understood by taking
the example of cooking a new recipe. To cook a new recipe,
one reads the instructions and steps and executes
them one by one, in the given sequence.
The result thus obtained is the new dish
is cooked perfectly. Every time you use your phone,
computer, laptop, or calculator you are using Algorithms. .
</p>
</div>
<div id="other">
<h1>Others</h1>
</div>
<div id="bootstrap">
<h2>Bootstrap</h2>
<p>
Bootstrap is a free and open-source collection of CSS
and JavaScript/jQuery code used for creating dynamic
websites layout and web applications. Bootstrap
is one of the most popular front-end frameworks
which has really a nice set of predefined CSS codes.
Bootstrap uses different types of classes to make
responsive websites. Bootstrap 5 was officially
released on 16 June 2020 after several months of
redefining its features.Bootstrap is a framework
that is suitable for mobile-friendly web development.
it means the code and the template available on
bootstrap are applicable to various screen sizes.
It is responsive for every screen size.
</p>
</div>
<div id="cpp">
<h2>C++</h2>
<p>
C++ is a general-purpose programming language
and is widely used nowadays for competitive programming.
It has imperative, object-oriented and generic
programming features. C++ runs on lots of platforms
like Windows, Linux, Unix, Mac etc.C++ is a general-purpose
programming language that was developed as an enhancement
of the C language to include object-oriented paradigm.
It is an imperative and a compiled language.
C++ is a middle-level language rendering it
the advantage of programming low-level (drivers, kernels)
and even higher-level applications
(games, GUI, desktop apps etc.)
. The basic syntax and code structure of both C
and C++ are the same.
</p>
</div>
</div>
</div>
</body>
</html>
Output:
Reference: https://getbootstrap.com/docs/5.0/components/navbar/#toggler
