csswizardry/img.css — reverse-engineered prompt

I want a tiny standalone CSS utility that only targets regular img elements and gives them a sensible reset plus a few opinionated defaults so images behave nicely out of the box.

The goal is to make dropped in images feel more predictable in normal content layouts, especially for responsive pages, without turning this into a full reset or a whole framework. Keep it very small, just one simple CSS file that someone can copy into a project. If it makes sense, include safe defaults that prevent awkward spacing or overflow and help images scale properly.

Also add a short README that explains what it is, why someone would use it, and how to include it. Keep the wording simple and practical. If you need to, look up current best practices for styling plain img tags, but keep the final result minimal and opinionated. I want this to feel like a polished little micro project, not a big package.