Add class definition for label.org-src-name for source-block captions

style/worg.css

@@ -926,6 +926,11 @@ content: "*** "
     .rss_item a:hover {}
     .rss_date {}
 
+    label.org-src-name {
+	font-size: 80%;
+	font-style: italic;
+    }
+
     #show_source {margin: 0; padding: 0;}
 
     #postamble {