diff --git a/SunnyUI/Forms/UIForm.cs b/SunnyUI/Forms/UIForm.cs
index 555ddad2..a77fe487 100644
--- a/SunnyUI/Forms/UIForm.cs
+++ b/SunnyUI/Forms/UIForm.cs
@@ -1321,6 +1321,11 @@ namespace Sunny.UI
                     ShowRadius = false;
                     Padding = new Padding(2, showTitle ? TitleHeight : 2, 2, 2);
                 }
+                else
+                {
+                    ShowRect = false;
+                    Padding = new Padding(0, showTitle ? TitleHeight : 0, 0, 0);
+                }
             }
         }
 
diff --git a/SunnyUI/Pages/UIPage.cs b/SunnyUI/Pages/UIPage.cs
index 38caf76f..f62ee0e9 100644
--- a/SunnyUI/Pages/UIPage.cs
+++ b/SunnyUI/Pages/UIPage.cs
@@ -316,5 +316,15 @@ namespace Sunny.UI
         {
             //SetStyle(UIStyles.Style);
         }
+
+        protected override CreateParams CreateParams
+        {
+            get
+            {
+                CreateParams cp = base.CreateParams;
+                cp.ExStyle |= 0x02000000;
+                return cp;
+            }
+        }
     }
 }
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