Show speed dial close button only when hovering over thumbnail

data/speeddial-head.html

@@ -1,6 +1,8 @@
 <!--
  Speed Dial head template for Midori.
  Copyright (C) 2009 Jean-François Guchens <zcx000@gmail.com>
+ Copyright (C) 2011 Paweł Forysiuk <tuxator@o2.pl>
+ Copyright (C) 2011 Cassidy James <email@cassidyjames.com>
  This file is licensed under the terms of the expat license, see the file EXPAT.
 -->
 
@@ -87,7 +89,7 @@
         -webkit-transition: opacity 0.15s;
     }
 
-    div.shortcut:hover .cross {
+    div.shortcut .preview:hover .cross {
         visibility: visible;
         opacity: 1;
         -webkit-transition-delay: 0.5s;