diff --git a/library.css b/library.css
index 8605b48..3580ae9 100644
--- a/library.css
+++ b/library.css
@@ -1001,7 +1001,7 @@ ul.portalTabs.uk-tab > .uk-active > a {
 }
 
 ul.portalTabs.uk-tab::before {
-    border-bottom: 1px solid var(--portal-main-color);
+    /*border-bottom: 1px solid var(--portal-main-color);*/
 }
 
 /* theme */