revealer: Add CSS node docs

diff --git a/gtk/gtkrevealer.c b/gtk/gtkrevealer.c
index 496ffe2d105c8d9ca53b22bdddefab062b88ec96..946f043248dd555c5c791b3adf3c8300dabd8373 100644 (file)
--- a/gtk/gtkrevealer.c
+++ b/gtk/gtkrevealer.c
@@ -44,6 +44,10 @@
  * These animations respect the #GtkSettings:gtk-enable-animations
  * setting.
  *
+ * # CSS nodes
+ *
+ * GtkRevealer has a single CSS node with name revealer.
+ *
  * The GtkRevealer widget was added in GTK+ 3.10.
  */