It is possible to change the format of your Related Posts. You can also add your CSS to the display of your related posts.
Go to TaxoPress > Related Posts and you can add your CSS to the whole div or to specific links. You can do this using the settings below:
Here is an example of adding classes to these fields:
I can then add the CSS for those classes to my theme, or to the “Customize” feature of WordPress.
In this example below, I’ve added the CSS code in the images above, and then loaded Related Posts with a widget. The result is very colorful!