diff --git a/packages/edit-post/src/components/layout/style.scss b/packages/edit-post/src/components/layout/style.scss
index da42faba630fb1..b59009e80f0fd3 100644
--- a/packages/edit-post/src/components/layout/style.scss
+++ b/packages/edit-post/src/components/layout/style.scss
@@ -1,4 +1,4 @@
-.edit-post-layout.has-metaboxes .edit-post-visual-editor {
+.edit-post-visual-editor:not(.is-iframed) {
 	flex: 1 0 auto;
 	height: auto;
 }