diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/desktop/DefaultDesktop.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/desktop/DefaultDesktop.java
index acddf5a5cd..0b5b6a997d 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/desktop/DefaultDesktop.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/desktop/DefaultDesktop.java
@@ -467,10 +467,9 @@ public class DefaultDesktop extends TabbedDesktop implements MenuListener, Seria
 		pnlHead.detach();
 		if (headerPopup == null) 
 		{
-			headerPopup = new Window();        	
-			headerPopup.setWidth("100%");
+			headerPopup = new Window(); 
+			headerPopup.setSclass("desktop-header-popup");
 			headerPopup.setVflex("true");
-			headerPopup.setShadow(true);
 			headerPopup.setVisible(false);
 			headerPopup.addEventListener(Events.ON_OPEN, new EventListener<OpenEvent>() {
 				@Override
diff --git a/org.adempiere.ui.zk/theme/default/css/theme.css.dsp b/org.adempiere.ui.zk/theme/default/css/theme.css.dsp
index 734472d224..8fc37ba256 100644
--- a/org.adempiere.ui.zk/theme/default/css/theme.css.dsp
+++ b/org.adempiere.ui.zk/theme/default/css/theme.css.dsp
@@ -121,6 +121,19 @@ html,body {
 	font-size: 10px;
 }
 
+.desktop-header-popup {
+	width: 800px;
+	border-radius: 3px;
+	border: 1px solid #d5d5d5;
+	border-right: 2px solid #d5d5d5;
+	border-bottom-width: 2px;
+	right: 1px;
+}
+
+.desktop-header-popup .desktop-header {
+	border: none;
+}
+
 .menu-href {
 	font-size: 11px;
 	font-weight: normal;