diff -urN v9/ezhtml.py v10/ezhtml.py
--- v9/ezhtml.py	2018-09-18 22:19:51.000000000 +0900
+++ v10/ezhtml.py	2018-09-20 03:53:08.000000000 +0900
@@ -15,7 +15,7 @@
 		s = s.replace(f, t)
 	return s
 
-def dump_tag(tag, v):
+def dump_tag(tag, v, pre):
 	lst = bak = tag.split(' ')
 	if lst[-1] == '/':
 		lst = lst[:-1]
@@ -23,7 +23,7 @@
 		lst = [ lst[0][:-1] ] + lst[1:]
 	s = '<' + ' '.join(lst) + '>'
 	if v != '/':
-		s += html_dump(v)
+		s += html_dump( v, lst[0].lower() == 'pre' )
 		if lst == bak:
 			s += '</' + lst[0] + '>'
 	return s
@@ -31,14 +31,15 @@
 def get_tag_v(d):
 	return list( d.items() )[0]
 
-def html_dump(o):
+def html_dump(o, pre=False):
 	if not o:
 		return ''
 	if type(o) == list:
-		return '\n'.join( map(html_dump, o) )
+		delim = '' if pre else '\n'
+		return delim.join( map( lambda e: html_dump(e, pre), o ) )
 	if type(o) == dict:
 		(tag, v) = get_tag_v(o)
-		return dump_tag(tag, v)
+		return dump_tag(tag, v, pre)
 	return cv_amp(o)
 
 def get_tag(s):