CSS and Custom Content Types

I have a Custom Content Type for Images. I uploaded my logo to the site using this CCT and I also uploaded three images that I am using for my image slideshow that I posted about earlier today. Tonight I went to style the slideshow using some CSS to make a border. And lo and behold, when I make the test CSS changes in Chrome’s analyzer (I use it and Firebug) it changes the other image as well. No surprise really. I believe the easiest thing to do is to maybe create a new content type for things that will serve different purposes. I may be wrong, but I’m gonna try that out.