diff --git a/app/assets/stylesheets/mobile/banner.scss b/app/assets/stylesheets/mobile/banner.scss
index bc82f0520..8740699c6 100644
--- a/app/assets/stylesheets/mobile/banner.scss
+++ b/app/assets/stylesheets/mobile/banner.scss
@@ -3,7 +3,9 @@
 // --------------------------------------------------
 
 #banner {
-  margin: 10px;
+  // go full width on mobile, by extending into the 10px wrap
+  // borders on left and right
+  margin: 0 -10px;
 
   @media all and (max-height: 499px) {
     max-height: 100px;