Index: wp-includes/admin-bar.php
===================================================================
--- wp-includes/admin-bar.php	(revision 17977)
+++ wp-includes/admin-bar.php	(working copy)
@@ -320,7 +320,7 @@
  *
  */
 function _admin_bar_bump_cb() { ?>
-<style type="text/css">
+<style type="text/css" media="screen">
 	html { margin-top: 28px !important; }
 	* html body { margin-top: 28px !important; }
 </style>