gtk-demo: Use a style class on the sidebar

Use .navigation-sidebar for the main sidebar.

diff --git a/demos/gtk-demo/main.ui b/demos/gtk-demo/main.ui
index 8ea11ab79540708c4d2beeca0ba56baa80adbd64..acc789d0ff897f4afc41417db552b2eab97f81f9 100644 (file)
--- a/demos/gtk-demo/main.ui
+++ b/demos/gtk-demo/main.ui
@@ -70,6 +70,9 @@
 
                 <child>
                   <object class="GtkListView" id="listview">
+                    <style>
+                      <class name="navigation-sidebar"/>
+                    </style>
                     <property name="factory">
                       <object class="GtkBuilderListItemFactory">
                         <property name="resource">/ui/main-listitem.ui</property>