diff -Nru horizon-15.0.0~b2/debian/changelog horizon-15.0.0~b2/debian/changelog
--- horizon-15.0.0~b2/debian/changelog	2019-03-19 01:21:31.000000000 +0900
+++ horizon-15.0.0~b2/debian/changelog	2019-03-19 14:22:44.000000000 +0900
@@ -1,3 +1,10 @@
+horizon (3:15.0.0~b2-0ubuntu1~cloud1) bionic-stein; urgency=medium
+
+  * Fixing white bar on top of login page (LP: #1818770)
+    - Adding html background-color: transparent to ubuntu theme
+
+ -- Seyeong Kim <seyeong.kim@canonical.com>  Tue, 19 Mar 2019 14:22:44 +0900
+
 horizon (3:15.0.0~b2-0ubuntu1~cloud0) bionic-stein; urgency=medium
 
   * New upstream release for the Ubuntu Cloud Archive.
diff -Nru horizon-15.0.0~b2/debian/theme/ubuntu/_styles.scss horizon-15.0.0~b2/debian/theme/ubuntu/_styles.scss
--- horizon-15.0.0~b2/debian/theme/ubuntu/_styles.scss	2019-03-14 05:15:32.000000000 +0900
+++ horizon-15.0.0~b2/debian/theme/ubuntu/_styles.scss	2019-03-19 14:22:42.000000000 +0900
@@ -2,6 +2,10 @@
 @import "horizon/styles";
 
 /* Ubuntu styles */
+html {
+  background-color: transparent;
+}
+
 body,
 .page-header {
   font-family: Ubuntu, Arial, "libra sans", sans-serif;