Index: /twentyeleven/style.css
===================================================================
--- /twentyeleven/style.css	(revision 16505)
+++ /twentyeleven/style.css	(revision 16506)
@@ -2492,5 +2492,5 @@
 	#nav-single {
 		display: block;
-		position: static;
+		position: relative;
 	}
 	.singular .hentry {