diff --git a/themes/mytheme/assets/css/common/header.css b/themes/mytheme/assets/css/common/header.css
index 6cc6967..9660864 100644
--- a/themes/mytheme/assets/css/common/header.css
+++ b/themes/mytheme/assets/css/common/header.css
@@ -12,6 +12,9 @@
 .nav-home {
     max-width: calc(var(--nav-width) - var(--gap));
 }
+.nav-nonpost {
+    max-width: calc(var(--nav-width));
+}
 
 .nav a {
     display: block;