diff --git a/theme/oceanblue/styles_layout.css b/theme/oceanblue/styles_layout.css
index c6e9e7ef248..10157857314 100644
--- a/theme/oceanblue/styles_layout.css
+++ b/theme/oceanblue/styles_layout.css
@@ -345,7 +345,10 @@ body#admin-config .confighelp {
   border:none;
   border-top:1px solid;
 }
-.sideblock .hidden .content {
+
+#left-column .hidden .content,
+#right-column .hidden .content
+{
   display: none;
 }