how to change style for an async table

Hi,

I generated a result from a ws connector in a async table and i want to change style for the caption, header, footer and rows, i applied for the async table css style propertie and after i republish the table is always with the same default style (gray and blue)

so how can I change those styles :
portlet-section-subheader
portlet-section-footer
portlet-section-body

thanks