Change Sale price colour

Dear Siteorigin,

When I want to change the color for the old price to red and the color for the new price green, both pricecolors change either both to red or to green.

I saw another thread similar to it. (https://siteorigin.com/thread/change-color-of-the-sale-css/) but the code didnt change anything for me.

www.salespotters.nl if you want to take a look.

Hope you guys can help!

Love the plugin!