More Parameter library reference edits

[SVN r30283]

libs/parameter

@@ -1 +1 @@
-Subproject commit 222354106473f15a3363471400e4de6f1008a95a
+Subproject commit 2bf8b6b102e2fd710718556cfb44f2c60bdb067a

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 ;