<title>Bootstrap 5 Fullscreen Modal</title>
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
<h1>Bootstrap 5 Fullscreen Modal</h1>
<p>Add the class <code>.modal-fullscreen</code> for <b>fullscreen</b> to the div containing class <code>.modal-dialog</code>.</p>
<button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#MyModalFullscreen">
<div class="modal fade" id="MyModalFullscreen" tabindex="-1" aria-labelledby="MyModalFullscreenLabel" aria-hidden="true">
<div class="modal-dialog modal-fullscreen">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title fs-5">FULLSCREEN Modal Heading</h4>
<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
Are you sure you want to continue?
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Understood</button>