Index: src/wp-admin/css/list-tables.css
===================================================================
--- src/wp-admin/css/list-tables.css	(revision 60899)
+++ src/wp-admin/css/list-tables.css	(working copy)
@@ -217,8 +217,7 @@
 	background-color: #f6f7f7;
 }
 
-#the-comment-list .unapproved th,
-#the-comment-list .unapproved td {
+#the-comment-list tr.unapproved {
 	background-color: #fcf9e8;
 }