diff --git a/public/theme/assets/css/main.css b/public/theme/assets/css/main.css
index ece9b69..1756900 100644
--- a/public/theme/assets/css/main.css
+++ b/public/theme/assets/css/main.css
@@ -105,6 +105,7 @@ hgroup,
 menu,
 nav {
     display: block;
+    width: 250px;
 }
 
 body {