diff --git a/app/assets/stylesheets/mobile/user.scss b/app/assets/stylesheets/mobile/user.scss
index 640c8bf16..34b28013a 100644
--- a/app/assets/stylesheets/mobile/user.scss
+++ b/app/assets/stylesheets/mobile/user.scss
@@ -251,4 +251,13 @@
       margin-top: -8px;
     }
   }
+
+  div#pagedown-editor {
+    width: 100%;
+  }
+
+  textarea#wmd-input {
+    width: 100%;
+  }
+
 }