diff --git a/gtk-3.0/apps/lightdm-gtk-greeter.css b/gtk-3.0/apps/lightdm-gtk-greeter.css
index 874cdb3..143f816 100644
--- a/gtk-3.0/apps/lightdm-gtk-greeter.css
+++ b/gtk-3.0/apps/lightdm-gtk-greeter.css
@@ -1,3 +1,11 @@
+/***********
+ * general *
+ ***********/
+
+#screen.lightdm-gtk-greeter {
+    background: transparent;
+}
+
 /*********
  * panel *
  *********/