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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Adding a Sass Stylesheet · Create React App</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="> Note: this feature is available with `react-scripts@2.0.0` and higher."/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Adding a Sass Stylesheet · Create React App"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/create-react-app/index.html"/><meta property="og:description" content="> Note: this feature is available with `react-scripts@2.0.0` and higher."/><meta property="og:image" content="https://facebook.github.io/create-react-app/img/logo-og.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://facebook.github.io/create-react-app/img/logo-og.png"/><link 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href="/create-react-app/docs/can-i-use-decorators">Can I Use Decorators?</a></li><li class="navListItem"><a class="navItem" href="/create-react-app/docs/pre-rendering-into-static-html-files">Pre-Rendering Static HTML</a></li><li class="navListItem"><a class="navItem" href="/create-react-app/docs/advanced-configuration">Advanced Configuration</a></li><li class="navListItem"><a class="navItem" href="/create-react-app/docs/alternatives-to-ejecting">Alternatives to Ejecting</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Support</h3><ul><li class="navListItem"><a class="navItem" href="/create-react-app/docs/troubleshooting">Troubleshooting</a></li></ul></div></div></section></div><script>
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</script></nav></div><div class="container mainContainer docMainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/create-react-app/edit/master/docusaurus/docs/adding-a-sass-stylesheet.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">Adding a Sass Stylesheet</h1></header><article><div><span><blockquote>
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<p>Note: this feature is available with <code>react-scripts@2.0.0</code> and higher.</p>
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</blockquote>
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<p>Generally, we recommend that you don’t reuse the same CSS classes across different components. For example, instead of using a <code>.Button</code> CSS class in <code><AcceptButton></code> and <code><RejectButton></code> components, we recommend creating a <code><Button></code> component with its own <code>.Button</code> styles, that both <code><AcceptButton></code> and <code><RejectButton></code> can render (but <a href="https://facebook.github.io/react/docs/composition-vs-inheritance.html">not inherit</a>).</p>
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<p>Following this rule often makes CSS preprocessors less useful, as features like mixins and nesting are replaced by component composition. You can, however, integrate a CSS preprocessor if you find it valuable.</p>
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<p>To use Sass, first install <code>node-sass</code>:</p>
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<pre><code class="hljs css language-bash">$ npm install node-sass --save
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$ <span class="hljs-comment"># or</span>
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$ yarn add node-sass
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</code></pre>
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<p>Now you can rename <code>src/App.css</code> to <code>src/App.scss</code> and update <code>src/App.js</code> to import <code>src/App.scss</code>.
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This file and any other file will be automatically compiled if imported with the extension <code>.scss</code> or <code>.sass</code>.</p>
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<p>To share variables between Sass files, you can use Sass imports. For example, <code>src/App.scss</code> and other component style files could include <code>@import "./shared.scss";</code> with variable definitions.</p>
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<p>This will allow you to do imports like</p>
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<pre><code class="hljs css language-scss">@<span class="hljs-keyword">import</span> <span class="hljs-string">'styles/_colors.scss'</span>; <span class="hljs-comment">// assuming a styles directory under src/</span>
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@<span class="hljs-keyword">import</span> <span class="hljs-string">'~nprogress/nprogress'</span>; <span class="hljs-comment">// importing a css file from the nprogress node module</span>
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</code></pre>
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<blockquote>
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<p><strong>Note:</strong> You must prefix imports from <code>node_modules</code> with <code>~</code> as displayed above.</p>
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</blockquote>
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<p><code>node-sass</code> also supports the <code>SASS_PATH</code> variable.</p>
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<p>To use imports relative to a path you specify, and from <code>node_modules</code> without adding the <code>~</code> prefix, you can add a <a href="https://github.com/facebook/create-react-app/blob/master/docusaurus/docs/adding-custom-environment-variables.md#adding-development-environment-variables-in-env"><code>.env</code> file</a> at the project root with the variable <code>SASS_PATH=node_modules:src</code>. To specify more directories you can add them to <code>SASS_PATH</code> separated by a <code>:</code> like <code>path1:path2:path3</code>.</p>
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<p>If you set <code>SASS_PATH=node_modules:src</code>, this will allow you to do imports like</p>
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<pre><code class="hljs css language-scss">@<span class="hljs-keyword">import</span> <span class="hljs-string">'styles/colors'</span>; <span class="hljs-comment">// assuming a styles directory under src/, where _colors.scss partial file exists.</span>
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@<span class="hljs-keyword">import</span> <span class="hljs-string">'nprogress/nprogress'</span>; <span class="hljs-comment">// importing a css file from the nprogress node module</span>
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</code></pre>
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<blockquote>
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<p><strong>Tip:</strong> You can opt into using this feature with <a href="/create-react-app/docs/adding-a-css-modules-stylesheet">CSS modules</a> too!</p>
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</blockquote>
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<blockquote>
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<p><strong>Note:</strong> If you're using Flow, override the <a href="https://flow.org/en/docs/config/options/#toc-module-file-ext-string">module.file_ext</a> setting in your <code>.flowconfig</code> so it'll recognize <code>.sass</code> or <code>.scss</code> files. You will also need to include the <code>module.file_ext</code> default settings for <code>.js</code>, <code>.jsx</code>, <code>.mjs</code> and <code>.json</code> files.</p>
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<pre><code class="hljs">[options]
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<span class="hljs-function"><span class="hljs-keyword">module</span>.<span class="hljs-title">file_ext</span>=</span>.js
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<span class="hljs-function"><span class="hljs-keyword">module</span>.<span class="hljs-title">file_ext</span>=</span>.jsx
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<span class="hljs-function"><span class="hljs-keyword">module</span>.<span class="hljs-title">file_ext</span>=</span>.mjs
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<span class="hljs-function"><span class="hljs-keyword">module</span>.<span class="hljs-title">file_ext</span>=</span>.json
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<span class="hljs-function"><span class="hljs-keyword">module</span>.<span class="hljs-title">file_ext</span>=</span>.sass
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<span class="hljs-function"><span class="hljs-keyword">module</span>.<span class="hljs-title">file_ext</span>=</span>.scss
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</code></pre>
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</blockquote>
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