:  <script src="https://ajax.googleapis.com/ajax/libs/jquery/0.0.0/jquery.min.js"></script>  <link href="https://maxcdn.bootstrapcdn.com/bootstrap/0.0.0/css/bootstrap.min.css" rel="stylesheet" />  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/0.0.0/js/bootstrap.min.js"></script>  <!-- Single button -->  <div class="btn-group">    <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">      With .dropdown-toggle <span class="caret"></span>    </button>    <ul class="dropdown-menu">      <li><a href="#">Action</a>      </li>      <li><a href="#">Another action</a>      </li>      <li><a href="#">Something else here</a>      </li>      <li role="separator" class="divider"></li>      <li><a href="#">Separated link</a>      </li>    </ul>  </div>    <!-- Single button -->  <div class="btn-group">    <button type="button" class="btn btn-default" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">      With