SLD and transparent polygon fill

[Bart van den Eijnden]

Hi list,

is it possible using Mapserver to have a transparent polygon fill through
SLD?

E.g.:

<Fill>
  <CssParameter name="fill">#ff0000</CssParameter>
  <CssParameter name="fill-opacity">0.5</CssParameter>
</Fill>

If not, is there a work-around to accomplish this using SLD?

Thanks in advance.

Best regards,
Bart