PostCSS Browser Comments [][PostCSS]

npm install postcss-browser-comments --save-dev

[PostCSS Browser Comments] lets you keep only the CSS you need based on
comments and your browserslist.

``css
/**
* Prevent adjustments of font size after orientation changes in IE and iOS.
*/

html {
-ms-text-size-adjust: 100%;
-webkit-text-size-adjust: 100%;
}

/ becomes /


`

The comment and rule above would be removed with the following browserslist:

`yml
last 2 chrome versions
`

The rule below would be more carefully altered:

`css
/**
* 1. Add the correct box sizing in Firefox.
* 2. Show the overflow in Edge and IE.
*/

hr {
box-sizing: content-box; / 1 /
height: 0; / 1 /
overflow: visible; / 2 /
}

/ with a last 2 firefox versions browserslist becomes /

/**
* 1. Add the correct box sizing in Firefox.
* 2. Show the overflow in Edge and IE.
*/

hr {
box-sizing: content-box; / 1 /
height: 0; / 1 /
}
`

Usage

Add [PostCSS Browser Comments] to your project:

`bash
npm install postcss postcss-browser-comments --save-dev
`

Use it as a [PostCSS] plugin:

`js
const postcss = require('postcss');
const postcssBrowserComments = require('postcss-browser-comments');

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

Options

$3

The browsers option overrides of the project’s browserslist.

`js
postcssBrowserComments({ browsers: 'last 2 versions' })
``

[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test

[discord]: https://discord.gg/bUadyRwkJS
[npm-url]: https://www.npmjs.com/package/postcss-browser-comments

[PostCSS]: https://github.com/postcss/postcss
[PostCSS Browser Comments]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-browser-comments