I have in mind the possibility of creating a floating menu with icons "menu items" with predefined images (eg 160x160px). Today in order to realize my idea, I have to adjust the "css" menu. Over this modification ceases to exist when I do some updating. If today there is a possibility to set "width" of the icon -

ask: why can not exist the parameter "height" and the different ordering of "one or two columns"?

Really not see that this implementation have to be fancy, would only reference to the floating menu "level 3" and would be hidden until the moment the cursor is over the button. Examining several old themes like "rocketheme" for joomla se ve this kind of arrangement.