Oh man, that totally fixed it. I just removed the “float: left;” line and the images are now aligning based on how I specify when I add them to a post.
Thanks so much! I kept looking for the piece of code that was interfering with the alignment but just couldn’t find anything that seemed to be affecting it. What was your trick? Did you search for “img” or for “float:left”? Or, just go through each style sheet one at a time?