diff --git a/agaric/templates/layout/page.html.twig b/agaric/templates/layout/page.html.twig
index 872fec6..310b5a5 100644
--- a/agaric/templates/layout/page.html.twig
+++ b/agaric/templates/layout/page.html.twig
@@ -4,7 +4,7 @@
 {% if page.navbar_branding or page.navbar_social or page.primary_menu %}
 {# Top navbar #}
 <div class="is-fixed">
-  <nav id="navbar" class="navbar">
+  <nav id="navbar" class="navbar transparent-header">
     <div class="navbar-brand">
       {% if page.navbar_branding %}
       {# TODO: remove this link if is_front and *probably* add visually-hidden h1