diff --git a/src/components/Navigation.astro b/src/components/Navigation.astro
index 75670df..e03dd87 100644
--- a/src/components/Navigation.astro
+++ b/src/components/Navigation.astro
@@ -82,7 +82,8 @@ const {id, items = []} = Astro.props;
 
   .List {
     position: fixed;
-    z-index: var(--index-thermosphere);
+    /* 1 above the Intro content */
+    z-index: calc(var(--index-thermosphere) + 1);
     bottom: var(--nav-list-bottom);
     right: 0;