diff --git a/packages/edit-site/src/components/block-editor/style.scss b/packages/edit-site/src/components/block-editor/style.scss
index 1c9cac3aa5eb41..6294853b5c0a87 100644
--- a/packages/edit-site/src/components/block-editor/style.scss
+++ b/packages/edit-site/src/components/block-editor/style.scss
@@ -27,6 +27,14 @@
 	// Centralize the editor horizontally (flex-direction is column).
 	align-items: center;
 
+	// Controls height of editor and editor canvas container (style book, global styles revisions previews etc.)
+	iframe {
+		display: block;
+		width: 100%;
+		height: 100%;
+		background: $white;
+	}
+
 	.edit-site-visual-editor__editor-canvas {
 		&.is-focused {
 			outline: calc(2 * var(--wp-admin-border-width-focus)) solid var(--wp-admin-theme-color);