2 blogs - image ratios

Site URL: https://www.ukrainiandanceworld.com/articles

Hi there

I have multiple blogs on my website.

• 1 is the articles page- https://www.ukrainiandanceworld.com/articles 
• 1 is a page non linked page (still a WIP) - https://www.ukrainiandanceworld.com/dance-groups-test1234  

I would like the articles page to have an image ratio of 16:9 and the other blog to have a image ratio of 1:1 (square) is it possible to achive this? 

To change articles page to 16:9, keep 1:1 in general settings, then add this to Design > Custom CSS

/* Articles page images */
body#collection-616069b4a711d816aa028cad .blog-basic-grid .image-wrapper {
    padding-bottom: 56.25% !important;
}