[gnome-themes-standard] HighContrast: add style for linked vertical button boxes

[Cosimo Cecchi <cosimoc src gnome org>]

commit 2cc70f8dc77fdb796ce672040cf9e07f7e08bd17
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Jan 4 11:50:19 2013 +0100

    HighContrast: add style for linked vertical button boxes
    
    As seen in gnome-packagekit.

 themes/HighContrast/gtk-3.0/gtk-widgets.css |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/themes/HighContrast/gtk-3.0/gtk-widgets.css b/themes/HighContrast/gtk-3.0/gtk-widgets.css
index 8b3db27..1306c13 100644
--- a/themes/HighContrast/gtk-3.0/gtk-widgets.css
+++ b/themes/HighContrast/gtk-3.0/gtk-widgets.css
@@ -675,6 +675,20 @@ GtkComboBox .button {
     border-width: 2px;
 }
 
+.linked.vertical .button {
+    border-width: 0 2px 2px;
+    border-radius: 0;
+}
+
+.linked.vertical .button:first-child {
+    border-radius: 3px 3px 0 0;
+    border-width: 2px;
+}
+
+.linked.vertical .button:last-child {
+    border-radius: 0 0 3px 3px;
+}
+
 /**********
  * Scales *
  **********/