diff --git a/ui/app/css/itcss/components/sections.scss b/ui/app/css/itcss/components/sections.scss
index 0d9cb1336..10a83d7ba 100644
--- a/ui/app/css/itcss/components/sections.scss
+++ b/ui/app/css/itcss/components/sections.scss
@@ -407,6 +407,7 @@ textarea.twelve-word-phrase {
   direction: ltr;
   overflow: hidden;
   text-overflow: ellipsis;
+  width: 100%;
 }
 
 .qr-header {