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-# PostCSS Blank Pseudo [<img src="https://postcss.github.io/postcss/logo.svg" alt="PostCSS Logo" width="90" height="90" align="right">][PostCSS]
-
-[<img alt="npm version" src="https://img.shields.io/npm/v/css-blank-pseudo.svg" height="20">][npm-url] [<img alt="Build Status" src="https://github.com/csstools/postcss-plugins/workflows/test/badge.svg" height="20">][cli-url] [<img alt="Discord" src="https://shields.io/badge/Discord-5865F2?logo=discord&logoColor=white">][discord]<br><br>[<img alt="Baseline Status" src="https://cssdb.org/images/badges-baseline/blank-pseudo-class.svg" height="20">][css-url] [<img alt="CSS Standard Status" src="https://cssdb.org/images/badges/blank-pseudo-class.svg" height="20">][css-url]
-
-```bash
-npm install css-blank-pseudo --save-dev
-```
-
-[PostCSS Blank Pseudo] lets you style form elements when they are empty, following
-the [Selectors Level 4] specification.
-
-To use this feature you need to do two things :
-- add the [PostCSS plugin](#usage) that transforms the selector into a class or attribute
-- add the [browser polyfill](#browser) that sets the attribute or class on elements in a browser
-
-```pcss
-input:blank {
- background-color: yellow;
-}
-
-/* becomes */
-
-input[blank].js-blank-pseudo, .js-blank-pseudo input[blank] {
- background-color: yellow;
-}
-input:blank {
- background-color: yellow;
-}
-```
-
-## Usage
-
-Add [PostCSS Blank Pseudo] to your project:
-
-```bash
-npm install postcss css-blank-pseudo --save-dev
-```
-
-Use it as a [PostCSS] plugin:
-
-```js
-const postcss = require('postcss');
-const postcssBlankPseudo = require('css-blank-pseudo');
-
-postcss([
- postcssBlankPseudo(/* pluginOptions */)
-]).process(YOUR_CSS /*, processOptions */);
-```
-
-[PostCSS Blank Pseudo] runs in all Node environments, with special
-instructions for:
-
-- [Node](INSTALL.md#node)
-- [PostCSS CLI](INSTALL.md#postcss-cli)
-- [PostCSS Load Config](INSTALL.md#postcss-load-config)
-- [Webpack](INSTALL.md#webpack)
-- [Next.js](INSTALL.md#nextjs)
-- [Gulp](INSTALL.md#gulp)
-- [Grunt](INSTALL.md#grunt)
-
-## Options
-
-### preserve
-
-The `preserve` option determines whether the original notation
-is preserved. By default, it is preserved.
-
-```js
-postcssBlankPseudo({ preserve: false })
-```
-
-```pcss
-input:blank {
- background-color: yellow;
-}
-
-/* becomes */
-
-input[blank].js-blank-pseudo, .js-blank-pseudo input[blank] {
- background-color: yellow;
-}
-```
-
-### replaceWith
-
-The `replaceWith` option determines the selector to use when replacing
-the `:blank` pseudo. By default is `[blank]`
-
-```js
-postcssBlankPseudo({ replaceWith: '.css-blank' })
-```
-
-```pcss
-input:blank {
- background-color: yellow;
-}
-
-/* becomes */
-
-.foo {
- color: blue;
- color: red;
-}
-
-.baz {
- color: green;
-}
-```
-
-Note that changing this option implies that it needs to be passed to the
-browser polyfill as well.
-
-### disablePolyfillReadyClass
-
-The `disablePolyfillReadyClass` option determines if selectors are prefixed with an indicator class.
-This class is only set on your document if the polyfill loads and is needed.
-
-By default this option is `false`.
-Set this to `true` to prevent the class from being added.
-
-```js
-postcssBlankPseudo({ disablePolyfillReadyClass: true })
-```
-
-```pcss
-input:blank {
- background-color: yellow;
-}
-
-/* becomes */
-
-input[blank] {
- background-color: yellow;
-}
-input:blank {
- background-color: yellow;
-}
-```
-
-## Browser
-
-```js
-import cssBlankPseudoInit from 'css-blank-pseudo/browser';
-
-cssBlankPseudoInit();
-```
-
-or
-
-```html
-<!-- When using a CDN url you will have to manually update the version number -->
-<script src="https://unpkg.com/css-blank-pseudo@6.0.2/dist/browser-global.js"></script>
-<script>cssBlankPseudoInit()</script>
-```
-
-[PostCSS Blank Pseudo] works in all major browsers, including Safari 6+ and
-Internet Explorer 9+ without any additional polyfills.
-
-This plugin conditionally uses `MutationObserver` to ensure recently inserted
-inputs get correct styling upon insertion. If you intend to rely on that
-behaviour for browsers that do not support `MutationObserver`, you have two
-options:
-
-1. Polyfill `MutationObserver`. As long as it runs before `cssBlankPseudoInit`,
-the polyfill will work.
-2. If you don't want to polyfill `MutationObserver` you can also manually fire
-a `change` event upon insertion so they're automatically inspected by the
-polyfill.
-
-### Browser Usage
-
-#### force
-
-The `force` option determines whether the library runs even if the browser
-supports the selector or not. By default, it won't run if the browser does
-support the selector.
-
-```js
-cssBlankPseudoInit({ force: true });
-```
-
-#### replaceWith
-
-Similar to the option for the PostCSS Plugin, `replaceWith` determines the
-attribute or class to apply to an element when it's considered to be `:blank`.
-
-```js
-cssBlankPseudoInit({ replaceWith: '.css-blank' });
-```
-
-This option should be used if it was changed at PostCSS configuration level.
-Please note that using a class, leverages `classList` under the hood which
-might not be supported on some old browsers such as IE9, so you may need
-to polyfill `classList` in those cases.
-
-### Using with Next.js
-
-Given that Next.js imports packages both on the browser and on the server, you need to make sure that the package is only imported on the browser.
-
-As outlined in the [Next.js documentation](https://nextjs.org/docs/advanced-features/dynamic-import#with-external-libraries), you need to load the package with a dynamic import:
-
-```jsx
-useEffect(async () => {
- const cssBlankPseudoInit = (await import('css-blank-pseudo/browser')).default;
- cssBlankPseudoInit();
-}, []);
-```
-
-We recommend you load the polyfill as high up on your Next application as possible, such as your `pages/_app.ts` file.
-
-[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
-[css-url]: https://cssdb.org/#blank-pseudo-class
-[discord]: https://discord.gg/bUadyRwkJS
-[npm-url]: https://www.npmjs.com/package/css-blank-pseudo
-
-[PostCSS]: https://github.com/postcss/postcss
-[PostCSS Blank Pseudo]: https://github.com/csstools/postcss-plugins/tree/main/plugins/css-blank-pseudo
-[Selectors Level 4]: https://www.w3.org/TR/selectors-4/#blank