<div class="btn-group">
        <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">
            position
            <span class="caret"></span>
        </button>
        <ul class="dropdown-menu">
            <li><a href="#">top</a></li>
            <li><a href="#">jungle</a></li>
            <li class="divider"></li>
            <li><a href="#">mid</a></li>
            <li><a href="#">asis</a></li>
        </ul>
    </div>

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