diff --git a/Gtk4/gtk160_wayland_test/res/style.css b/Gtk4/gtk160_wayland_test/res/style.css
index 7804c4c..9ed0a98 100644
--- a/Gtk4/gtk160_wayland_test/res/style.css
+++ b/Gtk4/gtk160_wayland_test/res/style.css
@@ -24,6 +24,7 @@
 	padding-bottom: 0px;
 }
 
-.ctrl_btn:hover {
-	color: black;
-}
\ No newline at end of file
+.ctrl_btn:hover{
+	color:black;
+	background-color: alpha(gray, 0.3);
+}