How to make a similar gallery on wp?

Question

Gallery

You need to make a gallery like here - html.xpage.com.ua/izolit/page_objects.html The
question is that not the media files themselves are displayed, but the "covers" of the categories (or a random image from this category) of files.
I use WP Media Category Management, which allows you to assign categories to media files, it is possible to display the entire category with all the pictures in it, but one from each category does not work ...
Maybe there is a solution?

Answer 1

As I understand it, you need to attach images to the headings, if so, this easy instruction
will do. The enlargement of images itself occurs through the fancybox plugin .