diff --git a/admin/client/src/components/Preview/Preview.js b/admin/client/src/components/Preview/Preview.js
index fd6e5ccfb..16fd83025 100644
--- a/admin/client/src/components/Preview/Preview.js
+++ b/admin/client/src/components/Preview/Preview.js
@@ -62,7 +62,7 @@ class Preview extends SilverStripeComponent {
 
     // Combine elements
     return (
-      <div className="flexbox-area-grow fill-height cms-content__right preview">
+      <div className="flexbox-area-grow fill-height preview">
         {body}
         <div className="toolbar toolbar--south">
           <button