I would like to know if it is possible (and if so how) to style the zoom controls purely using css (i.e. not using images). This can be seen in examples on the Openlayers website:
I'm guessing this is a different control from the zoomPanel used in the Drupal module as it offers '+' and '-' symbols for styling and has no zoomToMaxExtent button. It would be good if this was available.