[gnome-games/wip/exalm/libhandy2: 5/21] preferences-window: Add .sidebar style class to separators

[Alexander Mikhaylenko <alexm src gnome org>]

commit 363af74bd6f3cdc399505284d9b18d50b8ff6867
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Mon Sep 17 16:10:30 2018 +0500

    preferences-window: Add .sidebar style class to separators
    
    Since libhandy css removes sidebar border, style separators as one.

 data/ui/preferences-window.ui | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/data/ui/preferences-window.ui b/data/ui/preferences-window.ui
index 05a71cbf..938a25f1 100644
--- a/data/ui/preferences-window.ui
+++ b/data/ui/preferences-window.ui
@@ -23,6 +23,9 @@
           <object class="GtkSeparator" id="header_separator">
             <property name="orientation">vertical</property>
             <property name="visible">True</property>
+            <style>
+              <class name="sidebar"/>
+            </style>
           </object>
         </child>
       </object>
@@ -46,6 +49,9 @@
           <object class="GtkSeparator" id="separator">
             <property name="orientation">vertical</property>
             <property name="visible">True</property>
+            <style>
+              <class name="sidebar"/>
+            </style>
           </object>
         </child>
         <child>