https://caniuse.com/css-nesting
CSS Nesting | Can I use... Support tables for HTML5, CSS3, etc
can i usecss nestingsupport tables
https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Nesting
CSS nesting - CSS | MDN
The CSS nesting module defines a syntax for nesting selectors, providing the ability to nest one style rule inside another, with the selector of the child rule...
css nestingmdn
https://modern-css.com/reference/selectors/nesting/
CSS Nesting (&) | CSS Selectors & Pseudo-classes
Allows you to write CSS rules inside of other rules. This makes your code more organized and mirrors the structure of your HTML.
css nestingselectorspseudoclasses
https://developer.chrome.google.cn/docs/css-ui/css-nesting
CSS Nesting | Chrome for Developers
One of our favorite CSS preprocessor features is now built into the language: nesting style rules.
css nestingchromedevelopers