Bootstrap 5 Navbar doesn't collapse on phone - html

hello can you check this I cannot see the navbar when I turn to the phone please I need some help I want to finish it today, hope someone solve it for me
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons#1.8.1/font/bootstrap-icons.css">
<link rel="stylesheet" href="css/all.min.css">
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<nav class="navbar navbar-expand-lg ">
<div class="container-fluid">
<a class="navbar-brand" href="#"><img class="logo" src="photo/LOGO.png" alt="logo"></a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-
target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse justify-content-center" id="navbarSupportedContent">
<ul class="nav justify-content-center">
<li class="nav-item">
<a class="nav-link " href="index.html"><button class="btn btn-outline-dark" type="submit">Home</button></a>
</li>
<li class="nav-item">
<a class="nav-link" href="oO.html"><button class="btn btn-outline-dark" type="submit">OO</button></a>
</li>
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#"><button class="btn btn-dark" type="submit">RR</button></a>
</li>
<li class="nav-item">
<a class="nav-link" href="NN.html"><button class="btn btn-outline-dark" type="submit">NN</button></a>
</li>
<li class="nav-item">
<a class="nav-link" href="CC.html"><button class="btn btn-outline-dark" type="submit">CC</button></a>
</li>
</ul>
</div>
<form class="d-flex" >
<button class="btn btn-outline-dark me-3" type="submit" href="#"><i class="bi bi-twitter"></i></i></button>
<button class="btn btn-outline-dark me-3" type="submit" href="#"><i class="bi bi-discord"></i></button>
</form>
</div>
</nav>
<div class="d-flex justify-content-center">
<img src="photo/dragonoid rr.jpg" class="img-fluid" alt="rr" style="width: 1000px; " >
</div>
<script src="/js/all.min.js"></script>
<script src="/js/bootstrap.bundle.min.js"></script>
<script src="/js/script.js"></script>
</body>
</html>

Related

My Bootstrap Navi Bar doesn't look like it should

My Navi bar seems awkward. I just implemented the right Bootstrap CSS Link, Font awesome link and also bootstrap js link. However the navigation bar looks not fine. The search button should be on the far right.
how should it look like;
enter image description here,
how should it looks like now;
enter image description here
My php code;
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Ecommerce Website</title>
<!--Bootstrap CSS Link-->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<!--Font awesome-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.1/css/all.min.css" integrity="sha512-MV7K8+y+gLIBoVD59lQIYicR65iaqukzvf/nwasF0nqhPay5w/9lJmVM2hMDcnK1OnMGCdVK+iQrJ7lzPJQd1w==" crossorigin="anonymous" referrerpolicy="no-referrer" />
</head>
<body>
<div class="container-fluid">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
</div>
<!--bootstrap js link-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
</body>
</html>
Search button is not in the right position. The nav bar i just copied from Boot Strap.
The bootstrap version you're using is Bootstrap 5. You've to use bootstrap 4.
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap#4.0.0/dist/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

Navbar - Dropdown not showing up in bootstrap

I am trying to create a navbar for my website. It looks good but once I click on the dropdown none of my items show. If I decrease the size of the screen it also shows the icon, just my items that do not show when clicking.
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0/dist/css/bootstrap.min.css" rel="stylesheet"/>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Bootstrap 4 Introduction</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
crossorigin="anonymous">
<link rel="stylesheet" href="main.css">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
<form class="d-flex" role="search">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
</body>
You are missing the following files -
jquery
bootstrap.min.js
popper.js
Please find the working code below
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Bootstrap 4 Introduction</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.0.0/dist/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.12.9/dist/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<link rel="stylesheet" href="main.css">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
You can check more details at https://getbootstrap.com/docs/4.0/getting-started/introduction/

Why my bootstrap toggler is not showing items?

Im using bootstrap version5 and learning about navbar togglers but my togler is not showing any content on clicking.
Here is my code.
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarTogglerDemo01">
<a class="navbar-brand" href="#">Hidden brand</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="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
In learning bootstrap and creating a navbar using nav, So I used navbar toggler for small devices so I kept all my links in a toggler button but while clicking on toggler button nothing is showing
And this what I get.
The HTML markup you have shared with your post is correct. It should show the navigation panel while clicking on the toggle button.
I think you have not included the Bootstrap JavaScript file properly with your page. That is why the panel is not responding while clicking on the button.
Add the bootstrap JavaScript file to your page and it will work properly as you expected.
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/js/bootstrap.bundle.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarTogglerDemo01">
<a class="navbar-brand" href="#">Hidden brand</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="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
Change data-bs- to data- in your toggle button.
Tested on jsfiddle: https://jsfiddle.net/r3ktuL5f/
Your code is quite good but You missed to hook up bootstrap5 correctly ;-)
As we can read in official docs:
Include Bootstrap’s CSS and JS. Place the tag in the for
our CSS, and the tag for our JavaScript bundle (including
Popper for positioning dropdowns, poppers, and tooltips) before the
closing </body>.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap demo</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor" crossorigin="anonymous">
</head>
<body>
<h1>Hello, world!</h1>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/js/bootstrap.bundle.min.js" integrity="sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2" crossorigin="anonymous"></script>
</body>
</html>
You can also include Popper and our JS separately. If you don’t plan
to use dropdowns, popovers, or tooltips, save some kilobytes by not
including Popper.
<script src="https://cdn.jsdelivr.net/npm/#popperjs/core#2.11.5/dist/umd/popper.min.js" integrity="sha384-Xe+8cL9oJa6tN/veChSP7q+mnSPaj5Bcu9mPX5F5xIGE0DVittaqT5lorf0EI7Vk" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/js/bootstrap.min.js" integrity="sha384-kjU+l4N0Yf4ZOJErLsIcvOU2qSb74wXpOhqTvwVx3OElZRweTnQ6d31fXEoRD1Jy" crossorigin="anonymous"></script>
Your code example which is works fine when it is hook up correctly...:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap demo</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarTogglerDemo01">
<a class="navbar-brand" href="#">Hidden brand</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="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
<h1>Hello, world!</h1>
<h3 class="fs-2 text-danger">If You want to use bootstrap5 You need to hook up bootstrap5 correctly ;-)</h3>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/js/bootstrap.bundle.min.js" integrity="sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2" crossorigin="anonymous"></script>
</body>
</html>
Did you include the Bootstrap js file ? If not, the nav bar won't work properly.

Bootstrap 5 "Nav-bar" collapse does not work

Base code:
<?php
session_start();
if ((!isset($_SESSION['valid']) == true)) {
unset($_SESSION['valid']);
header('location:index.php');
}
?>
<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Noticias sobre Vacina - Digital</title>
<!-- Bootstrap-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.0/css/bootstrap.min.css" integrity="sha512-F7WyTLiiiPqvu2pGumDR15med0MDkUIo5VTVyyfECR5DZmCnDhti9q5VID02ItWjq6fvDfMaBaDl2J3WdL1uxA==" crossorigin="anonymous" referrerpolicy="no-referrer" /> <link rel="stylesheet" href="css/styles.css">
</head>
<body>
<div class="cover-container d-flex w-100 h-100 mx-auto flex-column">
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container">
<a class="navbar-brand" href="#">Noticias sobre a vacina</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="home.php"><i class="fas fa-home"></i> Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="cadastro_noticia.php"><i class="fas fa-clipboard-list"></i> Cadastro de noticia </a>
</li>
<li class="nav-item dropdown">
</ul>
<form class="form-inline my-2 my-md-0">
<a class="nav-link active" href="index.php"><i class="fas fa-sign-out-alt"></i>Sair</a>
</form>
</div>
</div>
</nav>
<div id="wrapper" class="toggled" style="margin-left: 5%; display: inline;">
<div class="container-fluid" id="conteudo">
</div>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.0/js/bootstrap.bundle.min.js" integrity="sha512-PqRelaJGXVuQ81N6wjUrRQelCDR7z8RvKGiR9SbSxKHPIt15eJDmIVv9EJgwq0XvgylszsjzvQ0+VyI2WtIshQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<!-- <script src="js/noticia.js"></script> -->
</body>
</html>
I've tried redirecting, using other CDNs and other factors, but nothing works, none makes the collapse work. I would like some help as I have no idea why it is not working.
Who can help me and also explain why, I would appreciate it.
You have to change the data-toggle to data-bs-toggle and use data-bs-target attribute. Add the ID in the collapse div. That's all.
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#collapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="collapse">

Navbar donesn't Collapse Boostrap

when i open my html file i don't find the collapse button on the navbar. The button for collapsing does not appear
here is my html code :
<!DOCTYPE html>
<html>
<head>
<title>BoostUp - Boostez vos projets</title>
<link href="/assets/css/boostrap/bootstrap.min.css" rel="stylesheet">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="./assets/css/heroes.css">
<link rel="stylesheet" href="./assets/css/style.css">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-white">
<div class="container-fluid">
<a class="navbar-brand" href="#">
<img src="/assets/img/logo.png" alt="" width="30" height="24" class="d-inline-block align-text-top">
BoostUp
</a>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="index.html">Accueil</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Référencement</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Posts</a>
</li>
</ul>
</div>
</div>
</nav>
</div>
<script src="./assets/js/jquery.js"></script>
<script src="/assets/js/booststrap/bootstrap.bundle.min.js"></script>
<script src="https://www.gstatic.com/firebasejs/8.6.1/firebase-app.js"></script>
<script src="./assets/js/firestart.js"></script>
</body>
</html>
Ps : i'm on bootstrap 5
You forgot to include the toggler button.
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
Toggler