diff --git a/gr-messageoftheday/gr-messageoftheday-banner_html.js b/gr-messageoftheday/gr-messageoftheday-banner_html.js
index c0230bd..d4d959c 100644
--- a/gr-messageoftheday/gr-messageoftheday-banner_html.js
+++ b/gr-messageoftheday/gr-messageoftheday-banner_html.js
@@ -24,6 +24,9 @@
     justify-content: space-between;
     padding: 1em;
   }
+  #message {
+    flex-grow: 1;
+  }
 </style>
 <div id="container" hidden$="[[_hidden]]">
   <div id="message"></div>