cost

@@ -29,13 +29,13 @@
                             <td><input class="form-control" type="number" name="price"></td>
                         </tr>
                     </tbody>
-                    <tfoot>
+
                         <tr>
-                            <th style="float: right" colspan="6">
+                            <th colspan="6">
                                 <a class="btn btn-default btn-sm" id="addattr">添加属性</a>
                             </th>
                         </tr>
-                    </tfoot>
+
                 </table>
             </div>
             <div class="col-md-3">