<div class="dropdown pull-right">
 <a class="btn btn-danger dropdown-toggle" data-toggle="dropdown" role="dropdown" aria-haspopup="true" aria-expanded="false">
                                Dropdown
</a>
<ul class="dropdown-menu from-right">
        <li><a class="dropdown-item">Dropdown menu item 1</a></li>
        <li><a class="dropdown-item">Dropdown menu item 2</a></li>
        <li><a class="dropdown-item">Dropdown menu item 3</a></li>
        <li><a class="dropdown-item">Dropdown menu item 4</a></li>
        <li><a class="dropdown-item">Dropdown menu item 5</a></li>
        <li><a class="dropdown-item">Dropdown menu item 6</a></li>
     </ul>
</div>