Custom code to resize specific images in a CMS collection

I have created the website using CMS collections & webflow e commerce.
For example on certain projects I am happy with the size of the image on desktop but not on mobile.
And I if I change the image size it will apply to all my slide one (of all projects) etc

So is there a custom code perhaps which would help me vary the sizes of a few specific images in a cms collection at certain breakpoints ?


Here is my site Read-Only: [LINK][1]
([how to share your site Read-Only link][2])

https://preview.webflow.com/preview/monk-2-0?utm_medium=preview_link&utm_source=designer&utm_content=monk-2-0&preview=3c01ab24e445adbfdbbb7488a1e269d0&pageId=6002b08aa4aa1a61b5cf1841&mode=preview