This is how it works in the old version of bootrap. I found that in the old a tab-pane fade in active in the new version it is already: tab-pane fade show active What else do I need to improve?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
<title>Bootsrap</title>
</head>
<body>
<div class="container">
<h3> Bootsrap Tabs</h3>
<ul class="nav nav-tabs">
<li class="nav-item">
<a class="nav-link active" data-toggle="tab" aria-current="page" href="#home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" data-toggle="tab" href="#help">Help</a>
</li>
</ul>
<div class="tab-content">
<div class="tab-pane fade show active " id="home">
<h2>Home</h2>
</div>
<div class="tab-pane" id="help">
<h2>Help</h2>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/5.3.2/jquery.min.js"></script>
</body>
</html>
I was able to write 1 word to the new version
In Bootstrap 5 data-toggle changes to data-bs-toggle
missing javascript loading
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
<title>Bootsrap</title>
</head>
<body>
<div class="container">
<h3> Bootstrap Tabs</h3>
<!-- Remember, when it changes from version 4 to 5 it changes to include -bs- in the data attributes -->
<ul class="nav nav-tabs">
<li class="nav-item">
<a class="nav-link active" data-bs-toggle="tab" aria-current="page" href="#home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" data-bs-toggle="tab" href="#help">Help</a>
</li>
</ul>
<div class="tab-content">
<div class="tab-pane fade show active " id="home">
<h2>Home</h2>
</div>
<div class="tab-pane" id="help">
<h2>Help</h2>
</div>
</div>
</div>
</body>
</html>