Index: wp-includes/media.php
===================================================================
--- wp-includes/media.php (revision 23043)
+++ wp-includes/media.php (working copy)
@@ -1519,6 +1519,9 @@
* @since 3.5.0
*/
function wp_print_media_templates() {
+ $ie_class = '';
+ if ( strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 7') !== false )
+ $ie_class = 'ie7';
?>