div di dalam form

<div id="itemRows">
                    <div class="row" >
                    <div class="col-md-2">
                    <div class="form-group">
                      <label>Bahan:</label>
                      <div class="input-group col-xs-12" >
                        <select class="form-control" required>
                        <option value="">Silahkan Pilih</option>
                          <option value="1">1</option>
                          <option value="2">2</option>
                          <option value="3">3</option>
                          <option value="4">4</option>
                          <option value="5">5</option>
                        </select>
                      </div>
                    </div>
                    </div>

                    <div class="col-md-2">
                    <div class="form-group">
                      <label>Panjang:</label>
                      <div class="input-group">
                        <input id="panjang" type="text" class="form-control" required>
                      </div>
                    </div>
                    </div>
                    <div class="col-md-2">
                    <div class="form-group">
                      <label>Lebar:</label>
                      <div class="input-group">
                        <input id="lebar" type="text" class="form-control" required>
                      </div>
                    </div>
                    </div>
                    <div class="col-md-2">
                    <div class="form-group">
                      <label>Gagal:</label>
                      <div class="input-group">
                        <input id="gagal" type="text" class="form-control" required>
                      </div>
                    </div>
                    </div>
                    <div class="col-md-2">
                    <div class="form-group">
                      <label>Counter Myob:</label>
                      <div class="input-group">
                        <input id="countmyob" type="text" class="form-control" required>
                      </div>
                    </div>
                    </div>

                    <div class="col-md-2">
                    <div class="form-group">
                      <div class="input-group">
                        <a class="btn btn-app" onclick="addRow(this.form);">
                            <i class="fa fa-plus"></i> Tambah
                        </a>
                      </div>
                    </div>
                    </div>
                    </div>

                    </div>