diff --git a/app/assets/stylesheets/application.css.sass b/app/assets/stylesheets/application.css.sass
index f14028f42390f4b9082c60c9fb0c2bac5748d46f..1118d1416a3e2128d44711fcaf8b7204c06d83f0 100644
--- a/app/assets/stylesheets/application.css.sass
+++ b/app/assets/stylesheets/application.css.sass
@@ -1905,6 +1905,10 @@ h1.tag
     :margin
       :bottom 25px
 
+    #invite_code
+      :width 100%
+      @include box-sizing(border-box)
+
 .subtle
   :color #888
   :font