I had some experience with web development. Nobody usually suggests this, but I have found in my experience that fixing validation errors usually fixes display errors as well:
http://validator.w3.org/check?uri=https://focusfusion.org/index.php/gallery/&charset;=(detect+automatically)&doctype=Inline&group=0
obviously you can ignore the “alt” ones, I think the blind folk not care much about the images anyway.
