CSS Editing

Hi,

On the checkout page page, (once somebody has registered a site and wants to pay or upgrade), the txt on the top line of the grid that says Level, Every 3 Months & Every 12 Months is in the same colour as the background of my site and can't be read. Could you please tell me what I have to edit on the checkout CSS to change the colour of the txt, I can't find it.

Regards,

Phil