element used for a menu's shadow is appended
to its root element via JavaScript once it has been rendered. The
code that creates the shadow lives in the menu's public "onRender"
event handler that is a prototype method of YAHOO.widget.Menu.
Implementers wishing to remove a menu's shadow or add any other markup
required for a given skin for menu should override the "onRender" method.
*/
.yui-menu-shadow {
position: absolute;
visibility: hidden;
z-index: -1;
}
.yui-menu-shadow-visible {
top: 2px;
right: -3px;
left: -3px;
bottom: -3px;
visibility: visible;
}
/*
There are two known issues with YAHOO.widget.Overlay (the superclass class of
Menu) that manifest in Gecko-based browsers on Mac OS X:
1) Elements with scrollbars will poke through Overlay instances floating
above them.
2) An Overlay's scrollbars and the scrollbars of its child nodes remain
visible when the Overlay is hidden.
To fix these bugs in Menu (a subclass of YAHOO.widget.Overlay):
1) The "overflow" property of a Menu instance's shadow element and child
nodes is toggled between "hidden" and "auto" (through the application
and removal of the "hide-scrollbars" and "show-scrollbars" CSS classes)
as its "visibility" configuration property is toggled between
"false" and "true."
2) The "display" property of