Modern CSS Might Make Your Front-End More Complex

Have you ever replaced fifty lines of JavaScript with a few lines of CSS, merged the PR, and felt like you just did the codebase a favor? You replace ResizeObserver with a container query, the diff is mostly red, and everyone approves it before lunch.
This was what it looked like before you made the change:
The selector matches more than we meant.
The :has(img) rule matches any descendant image, so the comment’s avatar counted as a hero image. And the p element selector matches any descendant