--- modules/system/system-behavior.css	2010-05-03 10:00:21.233989997 +0200
+++ modules/system/system-behavior-new.css	2010-05-03 10:00:27.541993821 +0200
@@ -299,7 +299,6 @@ html.js .js-hide {
  * causes issues for keyboard only or voice recognition users.
  */
 .element-invisible {
-  height: 0;
-  overflow: hidden;
   position: absolute;
+  top: -99em;
 }