Index: wp-content/themes/twentythirteen/style.css
===================================================================
--- wp-content/themes/twentythirteen/style.css	(revision 23784)
+++ wp-content/themes/twentythirteen/style.css	(working copy)
@@ -1409,7 +1409,9 @@
 }
 
 .blog .format-aside:first-of-type,
-.single .format-aside:first-of-type {
+.single .format-aside:first-of-type,
+.format-aside + .format-aside,
+.format-aside + .format-link {
 	box-shadow: inset 0 2px 2px rgba(173, 165, 105, 0.2);
 }
 
@@ -1506,6 +1508,11 @@
 	max-width: 100% !important; /* Avoid player width overflow. */
 }
 
+.format-audio + .format-audio,
+.format-audio + .format-video {
+	box-shadow: inset 0 2px 2px rgba(114, 45, 24, 0.2);
+}
+
 /* Chat */
 .format-chat {
 	background-color: #eadaa6;
@@ -1699,6 +1706,10 @@
 	display: inline;
 }
 
+.format-link + .format-link,
+.format-link + .format-aside {
+	box-shadow: inset 0 2px 2px rgba(173, 165, 105, 0.2);
+}
 
 /* Quote */
 .format-quote {
@@ -1856,7 +1867,12 @@
 	color: #220e10;
 }
 
+.format-video + .format-video,
+.format-video + .format-audio {
+	box-shadow: inset 0 2px 2px rgba(114, 45, 24, 0.2);
+}
 
+
 /**
  * 5.6 Attachments
  * ----------------------------------------------------------------------------