Index: wp-includes/js/tinymce/skins/wordpress/wp-content.css
===================================================================
--- wp-includes/js/tinymce/skins/wordpress/wp-content.css	(revision 34254)
+++ wp-includes/js/tinymce/skins/wordpress/wp-content.css	(working copy)
@@ -23,7 +23,6 @@
 	-webkit-font-smoothing: antialiased !important;
 	overflow-wrap: break-word;
 	word-wrap: break-word; /* Old syntax */
-	word-break: break-word; /* iOS */
 }
 
 body.rtl {