indent the TOC better in HTML

report/ht/haskell.cfg

@@ -31,6 +31,11 @@
 % Style sheet additions
 %
 \Css{
+   span.partToc { margin-left: 0em; }
+   span.chapterToc { margin-left: 2em; }
+   span.sectionToc { margin-left: 4em; }
+   span.subsectionToc { margin-left: 6em; }
+%
   % We like a smaller sans font.
 %  body { 
 %    font-family: Bitstream Vera Sans, Arial, Helvetica, sans-serif;