How to set content of a div using CSS

I'm working on customizing my new blog, and part of that is adding some image content above the link section. I can do that directly be editing the theme.master file (I'm using community server), but I'd like to be able to do it through the CS dashboard.

I've put in a div named EricBlogPictureLinks, but I can't figure out how to set the innerText property through CSS. Is it possible?