lightbox Lightbox caption background and text color change?

Hi all. I  am making a website for a photographer. Each images needs to have a caption link etc that shows up in lightbox mode.... but I  cannot figure a way to make the caption be black text on white b/g.

Does anyone know? The white text on black background looks crappy on this site. 

Thx!!!

Can you share link to page where you insert images? I can take a look

http://www.johngollings.com/work/explore
 

Thank you!!!! it's the pop up in lightbox mode

Add to Home > design > Custom CSS

.yui3-lightbox2 .sqs-lightbox-meta.overlay-description-visible {
    background: white;
}
.yui3-lightbox2 .sqs-lightbox-meta.overlay-description-visible * {
    color: black;
}

OMG you absolute legend. THANK YOU. Virtual hugs.