diff --git a/core/modules/ckeditor5/css/editor.css b/core/modules/ckeditor5/css/editor.css
index 5c28250f97..fe403696a4 100644
--- a/core/modules/ckeditor5/css/editor.css
+++ b/core/modules/ckeditor5/css/editor.css
@@ -8,3 +8,7 @@
   opacity: 1 !important;
   fill-opacity: 1 !important;
 }
+
+.ck.ck-content {
+  max-height: 100vh !important;
+}