diff --git a/src/css/nav.css b/src/css/nav.css
index 807a9fc..81f7d9e 100644
--- a/src/css/nav.css
+++ b/src/css/nav.css
@@ -72,6 +72,10 @@
   height: var(--nav-panel-menu-height);
 }
 
+.nav-panel-menu:only-child {
+  height: 100%;
+}
+
 .nav-panel-menu:not(.is-active) .nav-menu {
   opacity: 0.75;
 }