inherit:normal/inherit:none

Something that I've often wanted is to clear the cascades.

If I could get element#clear-the-decks and its children to ignore styles 
applied to their parents:

default:

element#clear-the-decks {
     inherit: normal;
}


active:

element#clear-the-decks {
     inherit: none;
}



Would this be too much pressure on the computing process?


Regards,
Barney