WordPress/wp-content/themes/twentytwentyone/postcss.config.js

module.exports = {
	plugins: [
		require('postcss-nested'),
		require('postcss-css-variables')({
			preserve: false,
			preserveAtRulesOrder: true
		}),
		require('postcss-calc')({
			precision: 0
		}),
		require('postcss-discard-duplicates'),
		require('postcss-merge-rules'),
		require('postcss-discard-empty')
	]
};
Twenty Twenty-One: Bring back PostCSS config. Twenty Twenty-One uses PostCSS to convert the custom properties for Internet Explorer. Without a config file, the postcss command does nothing, causing issues in IE. This brings back the config from GitHub, which replaces all custom properties with the default values. Props t-p, poena. Fixes #52040. Built from https://develop.svn.wordpress.org/trunk@49800 git-svn-id: http://core.svn.wordpress.org/trunk@49523 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2020-12-14 16:49:03 +00:00			`module.exports = {`
			`plugins: [`
			`require('postcss-nested'),`
			`require('postcss-css-variables')({`
			`preserve: false,`
			`preserveAtRulesOrder: true`
			`}),`
			`require('postcss-calc')({`
			`precision: 0`
Twenty Twenty-One: Remove duplicate CSS rules. Introduces a new PostCSS plugin, `postcss-discard-duplicates`, which will automatically remove any duplicate CSS rules. All the CSS that is removed shows up again later in the file. This also fixes a bug from `postcss-css-variables`, where media queries are duplicated. Fixes #52158. Props poena. Built from https://develop.svn.wordpress.org/trunk@49980 git-svn-id: http://core.svn.wordpress.org/trunk@49681 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2021-01-18 17:53:09 +00:00			`}),`
Twenty Twenty-One: Combine duplicate CSS rules. Use the postcss-merge-rules package when building TT1 stylesheets to reduce duplicate code in production CSS. Props SergeyBiryukov, ryelle, Shaharyar10, shital-patel, mukesh27, poena. Fixes #53605. Built from https://develop.svn.wordpress.org/trunk@52238 git-svn-id: http://core.svn.wordpress.org/trunk@51830 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2021-11-24 03:35:03 +00:00			`require('postcss-discard-duplicates'),`
Twenty Twenty-One: Update all dependencies. In preparation for updating Core to use Node.js version 18.x, this updates the dependancies for the Twenty Twenty-One theme to the latest versions. This addresses an unsupported engine warning where packages within the dependency tree did not support Node.js > 16.x. All changes to built files are included in this commit. These changes are a result of the following: - Identical sets of properties for multiple selectors are now consolidated into one. - The removal of a duplicate `--branding--description--font-family` definition. - The addition of the `postcss-discard-empty` dependency, which removes empty CSS rules within IE stylesheets after the previous consolidation is performed. - `stylelint` has only been updated to 14.x (15.x is the latest). This is because `@wordpres/stylelint-config` currently has a version constraint of `^14.2` and does not properly support 15.x. The last change of note is the new configuration for the `value-keyword-case` rule in `.stylelint-css.json`. This was added as a way to prevent the `currentColor` from being changed to all lowercase. Props jorbin, poena. See #59663, #59658. Built from https://develop.svn.wordpress.org/trunk@57122 git-svn-id: http://core.svn.wordpress.org/trunk@56633 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2023-11-17 16:22:19 +00:00			`require('postcss-merge-rules'),`
			`require('postcss-discard-empty')`
Twenty Twenty-One: Bring back PostCSS config. Twenty Twenty-One uses PostCSS to convert the custom properties for Internet Explorer. Without a config file, the postcss command does nothing, causing issues in IE. This brings back the config from GitHub, which replaces all custom properties with the default values. Props t-p, poena. Fixes #52040. Built from https://develop.svn.wordpress.org/trunk@49800 git-svn-id: http://core.svn.wordpress.org/trunk@49523 1a063a9b-81f0-0310-95a4-ce76da25c4cd 2020-12-14 16:49:03 +00:00			`]`
			`};`