diff --git a/source/_integrations/cast.markdown b/source/_integrations/cast.markdown
index dbf0d24b4e7..88127f27857 100644
--- a/source/_integrations/cast.markdown
+++ b/source/_integrations/cast.markdown
@@ -26,8 +26,11 @@ Home Assistant has its own Cast application to show the Home Assistant UI on any
       view_path: downstairs
     service: cast.show_lovelace_view
 ```
+<div class='note'>
 
-Note that Home Assistant Cast requires your Home Assistant installation to be accessible via `https://`. If you're using Home Assistant Cloud, you don't need to do anything. Otherwise you must make sure that you have configured the `base_url` for [the `http` integration](/integrations/http/).
+Home Assistant Cast requires your Home Assistant installation to be accessible via `https://`. If you're using Home Assistant Cloud, you don't need to do anything. Otherwise you must make sure that you have configured the `base_url` for [the `http` integration](/integrations/http/).
+
+</div>
 
 ## Advanced use