Avoiding iframes overlapping

Created by: bitbonsai

Updated .menu-dropdown, .dropdown-menu z-index to 999 to avoid iframes overlapping

lib/patterns.less

@@ -161,6 +161,7 @@
   .menu-dropdown,
   .dropdown-menu {
     background-color: #333;
+	z-index: 999;
     // a.menu for backwards compatibility
     a.menu,
     .dropdown-toggle {

bootstrap-1.2.0.css

@@ -1353,6 +1353,7 @@ a.menu:after, .dropdown-toggle:after {
   -webkit-background-clip: padding-box;
   -moz-background-clip: padding-box;
   background-clip: padding-box;
+  z-index: 999;
 }
 .menu-dropdown li, .dropdown-menu li {
   float: none;