Testimonial Slider Colour

Hey there,

I am trying to change the background colour for my testimonial sliders. In the footer of the site it is grey with gold text, which is perfect, but every time I try to add a testimonial box or slider to a sidebar or to the main content area of a page, it has a white bubble with white text and is illegible.

How am I able to fix this?

Cheers,

D