diff --git a/source/Ox.UI/css/theme.css b/source/Ox.UI/css/theme.css
index 1f1a08a4..6a6a1a2b 100644
--- a/source/Ox.UI/css/theme.css
+++ b/source/Ox.UI/css/theme.css
@@ -1,6 +1,12 @@
-body.$themeClass,
-body.$themeClass:fullscreen,
-body.$themeClass:-moz-full-screen,
+body.$themeClass {
+    background-color: $bodyBackground;
+}
+body.$themeClass:fullscreen {
+    background-color: $bodyBackground;
+}
+body.$themeClass:-moz-full-screen {
+    background-color: $bodyBackground;
+}
 body.$themeClass:-webkit-full-screen {
     background-color: $bodyBackground;
 }