Index: wp-content/themes/twentyeleven/style.css
===================================================================
--- wp-content/themes/twentyeleven/style.css	(revision 18379)
+++ wp-content/themes/twentyeleven/style.css	(working copy)
@@ -2069,6 +2069,7 @@
 	z-index: 1;
 }
 #respond textarea {
+	resize: vertical;
 	width: 95%;
 }
 #respond .comment-form-author .required,