W3Schools Tryit Editor

<!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 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>
</head>
<body>

<div class="container mt-3">
  <h3>Toast Example</h3>
  <p>In this example, we use a button to show the toast message.</p>

<button type="button" class="btn btn-primary" id="toastbtn">Show Toast</button>
  
  <div class="toast">
    <div class="toast-header">
      <strong class="me-auto">Toast Header</strong>
      <button type="button" class="btn-close" data-bs-dismiss="toast"></button>
    </div>
    <div class="toast-body">
      <p>Some text inside the toast body</p>
    </div>
  </div>
</div>

</body>
</html>