HTML

bootstrap dropdown with checkbox

<li class="dropdown">
        <a href="#" data-toggle="dropdown" class="dropdown-toggle">Dropdown Form<b class="caret"></b></a>
        <ul class="dropdown-menu">
            <li class="dropdown-item">
                <div class="checkbox">
                    <label>
                        <input type="checkbox">Two
                    </label>
                </div>
            </li>
            <li class="dropdown-item">
                <div class="checkbox">
                    <label>
                        <input type="checkbox">Two
                    </label>
                </div>
            </li>
        </ul>
    </li>