Bootstrap drop down pull-left not working

Question

I have tried putting pull-left on everything and whatever I do the drop down menu containing 'Edit' and 'Destroy' falls to the right meaning I get nasty scrollbars appearing.

HAML version:

.btn-group
  %button{ :class => 'btn btn-mini dropdown-toggle', 'data-toggle' => 'dropdown' }
    %span.icon-cog
  %ul.dropdown-menu
    %li= link_to 'Edit', '#'
    %li= link_to 'Destroy', '#'

HTML version:

<div class='btn-group'>
  <button class='btn btn-mini dropdown-toggle' data-toggle='dropdown'>
    <span class='icon-cog'></span>
  </button>
  <ul class='dropdown-menu nav pull-left'>
    <li><a href="#">Edit</a></li>
    <li><a href="#">Destroy</a></li>
  </ul>
</div>

Solution 1

Use pull-right instead of pull-left and menu will be shown on the left.

Solution 2

dropdown pull-left not working for dropdown-menu, but working for dropdown-submenu

<li class="dropdown-submenu pull-left">
  <a href="#" >Branch</a>
      <ul class="dropdown-menu">
          <li><a href="#">Create Branch</a></li>
          <li><a href="#">Edit Branch</a></li>
          <li><a href="#">Set Branch Status</a></li>
      </ul>
</li>

demo