myStyleHdr does override icePnlClpsblHdr (its background color temporarily changed to red in rime.css), even in IE. See attached screenshot. The markup looks like this:
<ice:panelCollapsible expanded="true" >
<f:facet name="header">
......
</f:facet>
<style>
.myStyleHdr
{
background-color: white !important;
}
</style>
<ice:panelCollapsible expanded="true" styleClass="myStyle">
<f:facet name="header">
......
</f:facet>
<ice:panelGroup >
......
</ice:panelGroup>
</ice:panelCollapsible>
</ice:panelCollapsible>
The result in IE looks exactly the same as in Firefox. So I don't see how it is not OK in IE but OK in Firefox.
Desired functionality for mimacom application.