I know this is old, but if anyone else is interested, I think I figured out the CSS, at least for my template (took me the whole day of experimenting!):
.ngg-album {
border: 1px solid #000000 ;
width: 450px;
padding: 5px;
margin-bottom: 5px;
display: inline-block;
overflow:hidden;
(of course, may require some modification as necessary or as you please…)
Still trying to figure out how to change the font properties of Title, and color of descriptions though…
