diff --git a/src/components/parts/Header.tsx b/src/components/parts/Header.tsx
index e38c1d5..84761bf 100755
--- a/src/components/parts/Header.tsx
+++ b/src/components/parts/Header.tsx
@@ -80,7 +80,7 @@ const Header = () => {
           <ContextMenu
             emphasis="high"
             button={t("navbar.library.navTitle")}
-            className="border-none uppercase"
+            className="border-none uppercase z-40"
           >
             <ContextMenuAction
               caption={t("navbar.library.publications")}
@@ -112,7 +112,7 @@ const Header = () => {
           <ContextMenu
             emphasis="high"
             button={t("navbar.about.navTitle")}
-            className="border-none uppercase"
+            className="border-none uppercase z-40"
           >
             <ContextMenuAction
               caption={t("navbar.about.aboutProject")}