Plug-in affected stylesheet

I installed a new plug-in and realized that it changed the white text that is on the slider boxes. Is there an easy way I can fix this so that the text ONLY on the sliders is white like it used to be?

www.sequentialmac.com is my page.

 

Hello,

Paste the following code in your Custom CSS
(Appearance -> Theme Options -> Styling Options -> Custom CSS)

Code:

.flex-caption h1 a {
color: white ! important;
}
.flex-caption p {
color: white ! important;
}

In place of "white" you can put your color or color code.