diff --git a/libs/parameter b/libs/parameter
index 2223541064..2bf8b6b102 160000
--- a/libs/parameter
+++ b/libs/parameter
@@ -1 +1 @@
-Subproject commit 222354106473f15a3363471400e4de6f1008a95a
+Subproject commit 2bf8b6b102e2fd710718556cfb44f2c60bdb067a
diff --git a/rst.css b/rst.css
index 0dcbb404c3..6663f83d16 100755
--- a/rst.css
+++ b/rst.css
@@ -65,6 +65,9 @@ div.figure {
 div.footer, div.header {
   font-size: smaller }
 
+div.line-block { display: block }
+div.line-block div.line-block { margin-left: 1.5em }
+
 div.sidebar {
   margin-left: 1em ;
   border: medium outset ;