diff --git a/src/SARibbonBar/resource/theme-office2013.qss b/src/SARibbonBar/resource/theme-office2013.qss
index c6f9a28..7452b99 100644
--- a/src/SARibbonBar/resource/theme-office2013.qss
+++ b/src/SARibbonBar/resource/theme-office2013.qss
@@ -44,7 +44,7 @@ SARibbonSeparatorWidget {
 
 /*SARibbonCategory*/
 SARibbonCategory {
-  background-color: #fcfdfe;
+  background-color: white;
 }
 SARibbonCategory:focus {
   outline: none;
@@ -63,7 +63,7 @@ SARibbonCategory > SARibbonSeparatorWidget {
 /*SARibbonPannel*/
 
 SARibbonPannel {
-  background-color: #fcfdfe;
+  background-color: white;
   border: none;
   color: #666666;
 }
@@ -136,10 +136,6 @@ SARibbonTabBar::tab {
   margin-bottom: 0px;
   min-width: 50px;
   min-height: 25px;
-  padding-top: -1px;
-  padding-bottom: -1px;
-  padding-top: -1px;
-  padding-bottom: -1px;
 }
 
 SARibbonTabBar::tab:selected {
@@ -150,10 +146,6 @@ SARibbonTabBar::tab:selected {
   border-right:1px solid #c5d2e0;
   border-left:1px solid #c5d2e0;
   border-bottom:1px solid white;
-  padding-top: -1px;
-  padding-bottom: -1px;
-  padding-top: -1px;
-  padding-bottom: -1px;
 }
 
 SARibbonTabBar::tab:hover:!selected {
@@ -164,10 +156,6 @@ SARibbonTabBar::tab:hover:!selected {
     border-right:1px solid #c5d2e0;
     border-left:1px solid #c5d2e0;
     border-bottom:1px solid white;
-    padding-top: -1px;
-    padding-bottom: -1px;
-    padding-top: -1px;
-    padding-bottom: -1px;
 }
 
 
diff --git a/src/SARibbonBar/resource/theme-office2016-blue.qss b/src/SARibbonBar/resource/theme-office2016-blue.qss
index 964a1c8..2665660 100644
--- a/src/SARibbonBar/resource/theme-office2016-blue.qss
+++ b/src/SARibbonBar/resource/theme-office2016-blue.qss
@@ -215,7 +215,7 @@ SARibbonTabBar {
 
 SARibbonTabBar::tab {
   color: #d2e4ff;/* {Tab.Color} */
-  border:none;
+  border:1px solid transparent;
   background: transparent;
   margin-top: 0px;
   margin-right: 0px;
@@ -230,11 +230,11 @@ SARibbonTabBar::tab {
 SARibbonTabBar::tab:selected {
   color: #225497;/* {Tab.Color:selected} */
   background: #f1f1f1;/* {Tab.BKColor:selected} */
-  border:none;
+  border:1px solid #f1f1f1;
 }
 
 SARibbonTabBar::tab:hover:!selected {
-  border:none;/* {Tab.BorderColor:hover:!selected} */
+  border:1px solid #3e6db6;/* {Tab.BorderColor:hover:!selected} */
   color:#d2e4ff;/* {Tab.Color:hover:!selected} */
   background:#3e6db6;/* {Tab.BKColor:hover:!selected} */
 }