diff --git a/lib/ace/css/editor.css b/lib/ace/css/editor.css
index 5b545728..5830a649 100644
--- a/lib/ace/css/editor.css
+++ b/lib/ace/css/editor.css
@@ -73,6 +73,13 @@
   height: 100%;
 }
 
+.ace_editor textarea {
+  border: none;
+  resize: none;
+  outline: none;
+  overflow: hidden;
+}
+
 .ace_layer {
   z-index: 1;
   position: absolute;