Responsive image styles In /admin/config/media/responsive-image-style. I created a responsive image style. The breakpoints group is bartik so now I have 3 breakpoints. Wide, Narrow and Mobile. I want to use a new image style I created called small, its 80x80 scaled pixels. I set all 3 breakpoints to use small. But in Mobile I want the image to stretch a little maybe have it go from 120 wide to 80 wide. Is this possible? Does that make sense? If I select multiple image style under small this field appears Enter the value for the sizes attribute, for example: (min-width:700px) 700px, 100vw. What does this mean and where can I find some format examples?
Responsive Image Style:
Here you can tell WHEN and WHAT STYLE to apply
Image style:
Here you can tell WHAT OPERATION should take place on the original image.

Create a new image style with scale &amp; crop (or whatever fits you) first,
and then set this image style to the right Responsive Image Style interval (in your case the smallest)