diff --git a/app/views/admin/layouts/preview.html.erb b/app/views/admin/layouts/preview.html.erb
index 99406b4c91b37078dfda520f34d6f62bb5db3b09..46e1d7d96b8e38f99e45550ff59a57af5aa54733 100644
--- a/app/views/admin/layouts/preview.html.erb
+++ b/app/views/admin/layouts/preview.html.erb
@@ -10,6 +10,7 @@
       <%= stylesheet_link_tag 'admin/pure', media: 'all' %>
     <% end %>
     <style>
+    // En prévisualisation il n'y a pas de menu, donc pas besoin de laisser de la place au-dessus du hero
     .hero {
       margin-top: 0;
       padding-top: 0;