PostCSS Selector Not [][PostCSS]

npm install postcss-selector-not --save-dev

[PostCSS Selector Not] transforms :not() W3C CSS level 4 pseudo classes to :not() CSS level 3 selectors following the [Selectors 4 Specification].

``css
p:not(:first-child, .special) {
color: red;
}

/ becomes /

p:not(:first-child):not(.special) {
color: red;
}
`

> [!CAUTION]
> Only lists of simple selectors (:not(.a, .b)) will work as expected.
> Complex selectors (:not(.a > .b, .c ~ .d)) can not be downgraded.

Usage

Add [PostCSS Selector Not] to your project:

`bash
npm install postcss postcss-selector-not --save-dev
`

Use it as a [PostCSS] plugin:

`js
const postcss = require('postcss');
const postcssSelectorNot = require('postcss-selector-not');

postcss([
postcssSelectorNot(/ pluginOptions /)
]).process(YOUR_CSS /, processOptions /);
``

[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
[css-url]: https://cssdb.org/#not-pseudo-class
[discord]: https://discord.gg/bUadyRwkJS
[npm-url]: https://www.npmjs.com/package/postcss-selector-not

[PostCSS]: https://github.com/postcss/postcss
[PostCSS Selector Not]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-selector-not
[Selectors 4 Specification]: https://www.w3.org/TR/selectors-4/#negation-pseudo