>
              <option value="B">B</option>
              <option value="C">C</option>
            </select>
          </div>
        </div>
      </div>

      <div class="control-group">
        <label for="multi-append" class="control-label">Select2 multi append</label>
        <div class="controls">
          <div class="input-append">
            <select id="multi-append" class="select2" multiple="multiple" style="width:400px;">
              <option></option>
              <option value="A">A</option