diff -ur v25/ezmd.py v26/ezmd.py
--- v25/ezmd.py	2019-10-07 22:18:22.000000000 +0900
+++ v26/ezmd.py	2019-10-08 20:57:18.000000000 +0900
@@ -181,6 +181,10 @@
 		return outbuf.lst_get(v2)
 	if v1 == 'prop':
 		return do_prop(v1, v2)
+	if v1 == 'detail' and '|' in v2:
+			(summary, buf_name) = lst_strip( delim_pop(v2, '|') )
+			v = [ tag_new('summary', {}, summary) ] + outbuf.lst_get(buf_name)
+			return tag_new('details', {}, v)
 	return tag_new('a', {'href': v1}, v2) if v1 else v2
 
 def do_br(s):