# PostCSS Focus Visible [PostCSS Logo][postcss] [npm version][npm-url] [CSS Standard Status][css-url] [Build Status][cli-url] [Discord][discord] [PostCSS Focus Visible] lets you use the `:focus-visible` pseudo-class in CSS, following the [Selectors Level 4 specification]. It is the companion to the [focus-visible polyfill]. [!['Can I use' table](https://caniuse.bitsofco.de/image/css-focus-visible.png)](https://caniuse.com/#feat=css-focus-visible) ```css :focus:not(:focus-visible) { outline: none; } /* becomes */ :focus:not(.focus-visible) { outline: none; } :focus:not(:focus-visible) { outline: none; } ``` [PostCSS Focus Visible] duplicates rules using the `:focus-visible` pseudo-class with a `.focus-visible` class selector, the same selector used by the [focus-visible polyfill]. This replacement selector can be changed using the `replaceWith` option. Also, the preservation of the original `:focus-visible` rule can be disabled using the `preserve` option. ## Usage Add [PostCSS Focus Visible] to your project: ```bash npm install postcss-focus-visible --save-dev ``` Use [PostCSS Focus Visible] to process your CSS: ```js const postcssFocusVisible = require('postcss-focus-visible'); postcssFocusVisible.process(YOUR_CSS /*, processOptions, pluginOptions */); ``` Or use it as a [PostCSS] plugin: ```js const postcss = require('postcss'); const postcssFocusVisible = require('postcss-focus-visible'); postcss([ postcssFocusVisible(/* pluginOptions */) ]).process(YOUR_CSS /*, processOptions */); ``` [PostCSS Focus Visible] runs in all Node environments, with special instructions for: | [Node](INSTALL.md#node) | [PostCSS CLI](INSTALL.md#postcss-cli) | [Webpack](INSTALL.md#webpack) | [Create React App](INSTALL.md#create-react-app) | [Gulp](INSTALL.md#gulp) | [Grunt](INSTALL.md#grunt) | | --- | --- | --- | --- | --- | --- | ## Options ### preserve The `preserve` option defines whether the original selector should remain. By default, the original selector is preserved. ```js focusVisible({ preserve: false }); ``` ```css :focus:not(:focus-visible) { outline: none; } /* becomes */ :focus:not(.focus-visible) { outline: none; } ``` ### replaceWith The `replaceWith` option defines the selector to replace `:focus-visible`. By default, the replacement selector is `.focus-visible`. ```js focusVisible({ replaceWith: '[focus-visible]' }); ``` ```css :focus:not(:focus-visible) { outline: none; } /* becomes */ :focus:not([focus-visible]) { outline: none; } :focus:not(:focus-visible) { outline: none; } ``` [cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test [css-url]: https://cssdb.org/#focus-visible-pseudo-class [discord]: https://discord.gg/bUadyRwkJS [npm-url]: https://www.npmjs.com/package/postcss-focus-visible [focus-visible polyfill]: https://github.com/WICG/focus-visible [Gulp PostCSS]: https://github.com/postcss/gulp-postcss [Grunt PostCSS]: https://github.com/nDmitry/grunt-postcss [PostCSS]: https://github.com/postcss/postcss [PostCSS Focus Visible]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-focus-visible [PostCSS Loader]: https://github.com/postcss/postcss-loader [Selectors Level 4 specification]: https://www.w3.org/TR/selectors-4/#the-focus-visible-pseudo