A test for logo showcase

I need to make a test for my logo showcase plugin, this has now been fixed with new additional CSS although the pictures need to be centre aligned.

I found these useful, especially the support forum.

1. See https://en-gb.wordpress.org/plugins/wp-logo-showcase-responsive-slider-slider/
2. I raised a ticket no image displayed on change of versions & https://prnt.sc/CO54BzEHJOWq
3. http://csslint.net/
4. https://stackoverflow.com/questions/25105736/what-is-the-order-of-precedence-for-css