6 files changed, 11 insertions, 14 deletions
diff --git a/haddock-api/haddock-api.cabal b/haddock-api/haddock-api.cabal
index d5c976b6..a410f436 100644
--- a/haddock-api/haddock-api.cabal
+++ b/haddock-api/haddock-api.cabal
@@ -34,10 +34,7 @@ data-files:
   html/Ocean.theme/ocean.css
   html/Ocean.theme/plus.gif
   html/Ocean.theme/synopsis.png
-  html/NewOcean.std-theme/hslogo-16.png
-  html/NewOcean.std-theme/minus.gif
   html/NewOcean.std-theme/new-ocean.css
-  html/NewOcean.std-theme/plus.gif
   html/NewOcean.std-theme/synopsis.png
   latex/haddock.sty
 
diff --git a/haddock-api/resources/html/NewOcean.std-theme/minus.gif b/haddock-api/resources/html/NewOcean.std-theme/minus.gif
deleted file mode 100644
index 1deac2fe..00000000
--- a/haddock-api/resources/html/NewOcean.std-theme/minus.gif
+++ /dev/null
diff --git a/haddock-api/resources/html/NewOcean.std-theme/new-ocean.css b/haddock-api/resources/html/NewOcean.std-theme/new-ocean.css
index 8416176c..7568032f 100644
--- a/haddock-api/resources/html/NewOcean.std-theme/new-ocean.css
+++ b/haddock-api/resources/html/NewOcean.std-theme/new-ocean.css
@@ -352,7 +352,7 @@ ul.links li a {
 .show { display: inherit; }
 .clear { clear: both; }
 
-.collapser:before, .expander:before {
+.collapser:before, .expander:before, .noexpander:before {
   font-size: 1.2em;
   color: #9C5791;
   display: inline-block;
@@ -360,11 +360,15 @@ ul.links li a {
 }
 
 .collapser:before {
-  content: '⊗';
+  content: '⊖';
 }
 .expander:before {
   content: "⊕";
 }
+.noexpander:before {
+  content: "⊕";
+  visibility: hidden;
+}
 
 .collapser, .expander {
   cursor: pointer;
@@ -380,12 +384,6 @@ ul.links li a {
 summary {
   cursor: pointer;
   outline: none;
-  list-style-image: url(plus.gif);
-  list-style-position: outside;
-}
-
-details[open] > summary {
-  list-style-image: url(minus.gif);
 }
 
 pre {
diff --git a/haddock-api/resources/html/NewOcean.std-theme/plus.gif b/haddock-api/resources/html/NewOcean.std-theme/plus.gif
deleted file mode 100644
index 2d15c141..00000000
--- a/haddock-api/resources/html/NewOcean.std-theme/plus.gif
+++ /dev/null
diff --git a/haddock-api/src/Haddock/Backends/Xhtml.hs b/haddock-api/src/Haddock/Backends/Xhtml.hs
index 2b8bdd69..2206b7dc 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml.hs
@@ -324,6 +324,7 @@ mkNode pkg qual ss p (Node s leaf _pkg srcPkg short ts) =
 
     cBtn = case (ts, leaf) of
       (_:_, Just _) -> thespan ! collapseControl p "" << spaceHtml
+      ([] , Just _) -> thespan ! [theclass "noexpander"] << spaceHtml
       (_,   _   ) -> noHtml
       -- We only need an explicit collapser button when the module name
       -- is also a leaf, and so is a link to a module page. Indeed, the
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
index 10a6d499..c935bc5f 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
@@ -195,17 +195,18 @@ subEquations :: Maybe Package -> Qualification -> [SubDecl] -> Html
 subEquations pkg qual = divSubDecls "equations" "Equations" . subTable pkg qual
 
 
--- | Generate sub table for instance declarations, with source
+-- | Generate collapsible sub table for instance declarations, with source
 subInstances :: Maybe Package -> Qualification
              -> String -- ^ Class name, used for anchor generation
              -> LinksInfo -> Bool
              -> [(SubDecl, Maybe Module, Located DocName)] -> Html
 subInstances pkg qual nm lnks splice = maybe noHtml wrap . instTable
   where
-    wrap contents = subSection (collapseDetails id_ DetailsOpen (summary +++ contents))
+    wrap contents = subSection (hdr +++ collapseDetails id_ DetailsOpen (summary +++ contents))
     instTable = subTableSrc pkg qual lnks splice
     subSection = thediv ! [theclass "subs instances"]
-    summary = thesummary << "Instances"
+    hdr = h4 ! collapseControl id_ "instances" << "Instances"
+    summary = thesummary ! [ theclass "hide-when-js-enabled" ] << "Instances details"
     id_ = makeAnchorId $ "i:" ++ nm