move more textarea styles to CSS

lib/ace/css/editor.css

@@ -74,6 +74,11 @@
 }
 
 .ace_editor textarea {
+  position: "absolute";
+  z-index: -1;
+  opacity: 0;
+  width: 10px;
+  height: 30px;
   border: none;
   resize: none;
   outline: none;

lib/ace/keyboard/textinput.js

@@ -43,13 +43,6 @@ var useragent = require("pilot/useragent");
 var TextInput = function(parentNode, host) {
 
     var text = document.createElement("textarea");
-    var style = text.style;
-    style.position = "absolute";
-    style.zIndex = -1;
-    style.opacity = 0;
-    style.border = "none";
-    style.width = "10px";
-    style.height = "30px";
     parentNode.appendChild(text);
 
     var PLACEHOLDER = String.fromCharCode(0);