When opening a blog post on my 3440x1440 monitor with the window maximized, I am greeted by a black screen. Only the website menu at the top and the blue tags are visible. I can see that the text is there, because I can highlight it with my cursor, but it is otherwise invisible. If I narrow the width of the window down to a 16:9 aspect ratio, the web page correctly displays with black text on a white background. I have tested both the main Paizo.com/blog page as well as multiple individual blog posts. They all suffer from this same bug.
