Index: editor-style-block.css
===================================================================
--- editor-style-block.css	(revision 51846)
+++ editor-style-block.css	(working copy)
@@ -1214,6 +1214,13 @@
 		font-size: 21px;
 	}
 
+	.editor-styles-wrapper h1.editor-post-title__input {
+		font-size: 84px;
+		text-align: center;
+		font-weight: 800;
+	}
+
+
 	/* TYPOGRAPHY */
 
 	.editor-post-title__block .editor-post-title__input,