<div class="dropdown multiselect">
  <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
    Dropdown
    <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
	<li><a>
		<input type="checkbox" id="action1">
		<label for="action1">Action</label>
	</a></li>
	<li><a>
		<input type="checkbox" id="action2">
		<label for="action2">Action</label>
	</a></li>
	<li><a>
		<input type="checkbox" id="action3">
		<label for="action3">Action</label>
	</a></li>
    <li role="separator" class="divider"></li>
	<li><a>
		<input type="checkbox" id="action4">
		<label for="action4">Action</label>
	</a></li>
  </ul>
</div>