zig 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="../../cdn.jsdelivr.net/npm/bootstrap%405.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="../../cdn.jsdelivr.net/npm/bootstrap%405.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
  <h2>Dark Mode Dropdown</h2>
  <p>Click on the dropdown menu to see the effect.</p>
  <div class="dropdown" data-bs-theme="dark">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropdown button
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
    </ul>
  </div>
</div>
</body>

</html>