diff --git a/wwwroot/index.ui b/wwwroot/index.ui
index 4338366..543c83f 100644
--- a/wwwroot/index.ui
+++ b/wwwroot/index.ui
@@ -26,6 +26,6 @@
          {"widgettype": "Text", "options": {"label": "查看演示中实体的 基线/当前/合并 属性", "fontSize": "13px", "color": "#666666"}}
        ]}
     ]},
-    {"widgettype": "VBox", "id": "app.demo_content", "options": {"width": "100%", "flex": "1", "marginTop": "20px"}}
+    {"widgettype": "VBox", "id": "demo_content", "options": {"width": "100%", "flex": "1", "marginTop": "20px"}}
   ]
 }