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How to control size and display of images inside a collection list

Hello, I have been struggling to find a way to display collection items on my template page; I want the images to display in a uniform height, and the audience will scroll to the right. The system is already in place, but I cannot make the images be a uniform height and display in full, either the first image (which happens to be narrower) displays larger, or I get all images in the same size but cropped. I have tried endless combinations of working on the images and their parents, without success. Please help? thank you! the read link is included:

https://preview.webflow.com/preview/sjetchy-doobydoo?utm_medium=preview_link&utm_source=designer&utm_content=sjetchy-doobydoo&preview=f08a4ae50e3cf60fcc65d45806844ee4&pageId=5d0d83338b4b2577731876bc&itemId=5d267fa89368b929c76edcee&mode=preview