diff --git a/themes/darkblue_orange/css/theme_right.css.php b/themes/darkblue_orange/css/theme_right.css.php
index e555da9ee..07e786efb 100644
--- a/themes/darkblue_orange/css/theme_right.css.php
+++ b/themes/darkblue_orange/css/theme_right.css.php
@@ -680,14 +680,14 @@ ul#topmenu li, ul#topmenu2 li {
 /* default tab styles */
 ul#topmenu a, ul#topmenu span {
     display:            block;
-    margin:             0.2em 0.2em 0 0.2em;
-    padding:            0.2em 0.2em 0 0.2em;
+    margin:             2px 2px 0;
+    padding:            2px 2px 0;
     white-space:        nowrap;
 }
 
 ul#topmenu ul a {
     margin:             0;
-    padding-bottom:     0.2em;
+    padding-bottom:     2px;
 }
 
 ul#topmenu .submenu {
@@ -797,7 +797,7 @@ ul#topmenu ul li:first-child a {
 ul#topmenu > li > a:hover,
 ul#topmenu > li > .tabactive {
     margin:             0;
-    padding:            0.2em 0.4em 0.2em 0.4em;
+    padding:            2px 4px;
     text-decoration:    none;
 }
 
diff --git a/themes/original/css/theme_right.css.php b/themes/original/css/theme_right.css.php
index bc5f6ee1e..02736c61b 100644
--- a/themes/original/css/theme_right.css.php
+++ b/themes/original/css/theme_right.css.php
@@ -655,14 +655,14 @@ ul#topmenu li, ul#topmenu2 li {
 /* default tab styles */
 ul#topmenu a, ul#topmenu span {
     display:            block;
-    margin:             0.2em 0.2em 0 0.2em;
-    padding:            0.2em 0.2em 0 0.2em;
+    margin:             2px 2px 0;
+    padding:            2px 2px 0;
     white-space:        nowrap;
 }
 
 ul#topmenu ul a {
     margin:             0;
-    padding-bottom:     0.2em;
+    padding-bottom:     2px;
 }
 
 ul#topmenu .submenu {
@@ -772,7 +772,7 @@ ul#topmenu ul li:first-child a {
 ul#topmenu > li > a:hover,
 ul#topmenu > li > .tabactive {
     margin:             0;
-    padding:            0.2em 0.4em 0.2em 0.4em;
+    padding:            2px 4px;
     text-decoration:    none;
 }