diff --git a/src/main/resources/duo.css b/src/main/resources/duo.css
index 4761057..dcb1a80 100644
--- a/src/main/resources/duo.css
+++ b/src/main/resources/duo.css
@@ -2,5 +2,5 @@
 	width: 100%;
 	min-width: 304px;
 	max-width: 620px;
-	height: 330;
+	height: 330px;
 }
\ No newline at end of file