diff --git a/zktest/src/main/webapp/test2/B50-ZK-647.zul b/zktest/src/main/webapp/test2/B50-ZK-647.zul
index e36f5726b2..d6dfb1376d 100644
--- a/zktest/src/main/webapp/test2/B50-ZK-647.zul
+++ b/zktest/src/main/webapp/test2/B50-ZK-647.zul
@@ -5,9 +5,9 @@
 B50-ZK-647.zul
 
 	Purpose:
-		
+
 	Description:
-		
+
 	History:
 		Mon Dec  5 15:20:38 TST 2011, Created by benbai
 
@@ -18,6 +18,6 @@ Copyright (C) 2011 Potix Corporation. All Rights Reserved.
 	<div height="10px" />
 	<div height="20px">Check whether all the style of the 'Test' below are correct,</div>
 	<div height="20px">color:#0000CC; font-family:"courier new","times new roman","黑体"; font-size:30px;</div>
-	<label value='Test'
+	<label id="label" value='Test'
 		style='color:#0000CC; font-family:"courier new","times new roman","黑体"; font-size:30px;'/>
 </zk>
\ No newline at end of file
diff --git a/zktest/src/main/webapp/test2/config.properties b/zktest/src/main/webapp/test2/config.properties
index 66ec801e40..7d9b92d85a 100644
--- a/zktest/src/main/webapp/test2/config.properties
+++ b/zktest/src/main/webapp/test2/config.properties
@@ -1127,7 +1127,7 @@ B50-ZK-592.zul=A,E,Listbox,ROD,Model,ShiftClick
 ##ztl##B50-ZK-631.zul=B,E,Datebox,Constraint
 ##zats##B50-ZK-640.zul=B,E,Toolbarbutton
 ##ztl##B50-ZK-641.zul=B,M,Borderlayout,IE
-##ztl##B50-ZK-647.zul=B,E,Style
+##zats##B50-ZK-647.zul=B,E,Style
 ##zats##B50-ZK-660.zul=B,M,Tab,Tabpanel
 ##ztl##B50-ZK-664.zul=B,M,Button,IE
 ##zats##B50-ZK-658.zul=B,E,Doublebox,format
diff --git a/zktest/src/test/java/org/zkoss/zktest/zats/test2/B50_ZK_647Test.java b/zktest/src/test/java/org/zkoss/zktest/zats/test2/B50_ZK_647Test.java
new file mode 100644
index 0000000000..2d297a1d27
--- /dev/null
+++ b/zktest/src/test/java/org/zkoss/zktest/zats/test2/B50_ZK_647Test.java
@@ -0,0 +1,29 @@
+/* B50_ZK_647Test.java
+
+	Purpose:
+
+	Description:
+
+	History:
+		11:27 AM 2024/10/9, Created by jumperchen
+
+Copyright (C) 2024 Potix Corporation. All Rights Reserved.
+*/
+package org.zkoss.zktest.zats.test2;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+import org.zkoss.test.webdriver.WebDriverTestCase;
+
+/**
+ * @author jumperchen
+ */
+public class B50_ZK_647Test extends WebDriverTestCase {
+	@Test
+	public void test() {
+		connect();
+		assertEquals("color:#0000CC; font-family:\"courier new\",\"times new roman\",\"黑体\"; font-size:30px;", jq("$label").attr("style"));
+	}
+}