graphene slider post excerpt color

Hullo,

I’ve been breaking my head about how to change this css class.

<div class="slider_post_entry clearfix">

Read a bunch of threads, tried about 8 different codes in my child theme css, but I can’t seen to call a change to the text color of this post excerpt that appears on my front page.

What would be the easiest solution would appear to be

.slider_post_entry clearfix{
    color: #FFFFFF;
}

That won’t work, neither will a bunch of slider_ related classes.

Can someone help me find out what this class is really called?

Thanks!
Frodo