diff --git a/lib/client/edit.js b/lib/client/edit.js
index d7ef7a90..2aef3f9a 100644
--- a/lib/client/edit.js
+++ b/lib/client/edit.js
@@ -162,7 +162,6 @@ var CloudCmd, Util, DOM, CloudFunc, JsDiff, ace;
                 DOM.cssSet({
                     id      : 'msg-css',
                     inner   : '.msg {'              +
-                                'z-index'           + ': 1;'                    +
                                 'background-color'  + ': white;'                +
                                 'color'             + ': rgb(49, 123, 249);'    +
                                 'position'          + ': fixed;'                +