tinyslider overlay caption

Question

I want to add overlay captions in tinyslider that are like those in tinyslideshow.  If I put the caption in a span, it only shows if the span is placed before the images (in this situation iframe) in the list.  The iframe is pushed down to show the caption.  If I put the span after the images iframe, the caption doesn't show.  I tested different CSS settings and could not have caption overlay.  Is this because of the iframe?  I need this tag for the content I am loading.  Are overlay captions possible with tinyslider.