PostCSS Unset Value lets you use the unset keyword, following the CSS Cascading and Inheritance specification.
```pcss .color { color: unset; }
.border-color { border-color: unset; }
.margin { margin: unset; }
/ becomes / .color { color: inherit; }
.border-color { border-color: initial; }
.margin { margin: initial; } ```
Add PostCSS Unset Value to your project:
bash
npm install postcss @csstools/postcss-unset-value --save-dev
Use it as a PostCSS plugin:
```js const postcss = require('postcss'); const postcssUnsetValue = require('@csstools/postcss-unset-value');
postcss([ postcssUnsetValue(/ pluginOptions /) ]).process(YOUR_CSS /, processOptions /); ```
PostCSS Unset Value runs in all Node environments, with special instructions for:
| Node | PostCSS CLI | Webpack | Create React App | Gulp | Grunt | | --- | --- | --- | --- | --- | --- |
The preserve
option determines whether the original source
is preserved. By default, it is not preserved.
js
postcssUnsetValue({ preserve: true })
```pcss .color { color: unset; }
.border-color { border-color: unset; }
.margin { margin: unset; }
/ becomes /
.color { color: inherit; color: unset; }
.border-color { border-color: initial; border-color: unset; }
.margin { margin: initial; margin: unset; } ```