diff --git a/app/client/components/CustomView.css b/app/client/components/CustomView.css
index b199ba04..15e4c04b 100644
--- a/app/client/components/CustomView.css
+++ b/app/client/components/CustomView.css
@@ -1,6 +1,7 @@
 iframe.custom_view {
   border: none;
   height: 100%;
+  flex: auto;
 }
 
 .custom_view_notification {