Atahualpa has been excellent so far, and I've found answers on these forums to most of my questions, but here's one I couldn't find an answer to: is it possible to apply a different style to posts on the multi post pages (eg. when a category is selected) only? The formatting as it is for the home page and single post pages is fine, but for multi post pages I would like the excerpts to be a lot tighter together vertically (ie. reduced top/bottom padding/margin for body, header, footer, etc). With the current formatting, there is a lot of empty space on multi post pages between the headline and the body, and the body and the next post.
I imagine that I will have to add some PHP into The Loop, and a CSS insert.
Here is an example of a multi post category page with too much vertical spacing in it: