cost

@@ -29,15 +29,13 @@
                             <td><input class="form-control" type="number" name="price"></td>
                             <td><input class="form-control" type="number" name="price"></td>
                         </tr>
                         </tr>
                     </tbody>
                     </tbody>
-
-                    <tr>
-                        <th>
-                        <div>
-                            <a class="btn btn-default btn-sm" id="addattr">添加属性</a>
-                        </div>
-                        </th>
-                    </tr>
-
+                    <tfoot>
+                        <tr>
+                            <th>
+                                <div style="float: right"><a class="btn btn-default btn-sm" id="addattr">添加属性</a></div>
+                            </th>
+                        </tr>
+                    </tfoot>
                 </table>
                 </table>
             </div>
             </div>
             <div class="col-md-3">
             <div class="col-md-3">