remove hyperlink border for doc icons in game titles

svn: r10783

collects/games/scribblings/common.ss

@@ -2,6 +2,7 @@
 
 (require scribble/manual
          scribble/decode
+         scribble/struct
          setup/main-collects)
 (provide (all-from-out scribble/manual)
          selflink
@@ -16,9 +17,12 @@
   (make-splice
    (list
     (title #:tag subcol 
+           (make-element
+            "noborder"
+            (list
              (image (path->main-collects-relative
                      (build-path (collection-path "games" subcol)
-                               (format "~a.png" subcol))))
+                                 (format "~a.png" subcol))))))
            " " (onscreen name) " --- " subtitle)
     (margin-note "To play "
                  (onscreen name)

collects/scribble/scribble.css

@@ -480,3 +480,7 @@ i {
   margin: 0em;
   padding: 0em;
 }
+
+.noborder img {
+  border: 0;
+}