diff --git a/framework/core/ember/app/styles/flarum/discussion.less b/framework/core/ember/app/styles/flarum/discussion.less
index bc1ab145a..db121939a 100644
--- a/framework/core/ember/app/styles/flarum/discussion.less
+++ b/framework/core/ember/app/styles/flarum/discussion.less
@@ -109,7 +109,7 @@
   }
 }
 
-@media @tablet @desktop @desktop-hd {
+@media @tablet, @desktop, @desktop-hd {
   .discussion-posts {
     margin-right: 200px;
   }
diff --git a/framework/core/ember/app/styles/flarum/layout.less b/framework/core/ember/app/styles/flarum/layout.less
index 72d1e0df1..f51a99bb8 100644
--- a/framework/core/ember/app/styles/flarum/layout.less
+++ b/framework/core/ember/app/styles/flarum/layout.less
@@ -275,7 +275,7 @@ body {
       }
     }
   }
-  .back-control {
+  .back-button {
     float: left;
     margin-right: 25px;