Index: src/wp-admin/css/media.css
===================================================================
--- src/wp-admin/css/media.css	(revision 56746)
+++ src/wp-admin/css/media.css	(working copy)
@@ -130,6 +130,7 @@
 }

 .media-item .edit-attachment.copy-to-clipboard-container {
+	display: flex;
 	margin-top: 0;
 }