You can do it the same as the slideshow caption example, but don't use the paragraph tag, use a class instead, something like this:
<div class="meteor-caption">
<h4><?php the_title(); ?></h4>
<?php the_excerpt(); ?>
</div>
And then style it like this:
.meteor-slides .meteor-caption {
background: transparent url('images/title-bg.png') repeat top left;
bottom: 0;
left: 0;
color: #000;
margin: 0;
padding: 5px;
position: absolute;
text-align: center;
width: 100%;
}