element used for a Tooltip's shadow is appended to its root element via JavaScript once it has been rendered. The code that creates the shadow lives in the Tooltip's public "onRender" event handler that is a prototype method of YAHOO.widget.Tooltip. Implementers wishing to remove a Tooltip's shadow or add any other markup required for a given skin for Tooltip should override the "onRender" method. */ .yui-tt-shadow { display: none; } * html body.masked select { visibility:hidden; } * html div.yui-panel-container select { visibility:inherit; } * html div.drag select { visibility:hidden; } * html div.hide-select select { visibility:hidden; } .mask { z-index: 1; display:none; position:absolute; top:0; left:0; -moz-opacity: 0.5; opacity:.50; filter: alpha(opacity=50); background-color:#CCC; } /* There are two known issues with YAHOO.widget.Overlay (and its subclasses) 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: 1) The "overflow" property of an Overlay instance's root 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