How to import a CSS file in a React Component

Javascript Problem Overview

I want to import a CSS file into a react component.

I've tried import disabledLink from "../../../public/styles/disabledLink"; but I get the error below;

> Module not found: Error: Cannot resolve 'file' or 'directory' ../../../public/styles/disabledLink in c:\Users\User\Documents\pizza-app\client\src\components @ ./client/src/components/ShoppingCartLink.js 19:20-66 Hash: 2d281bb98fe0a961f7c4 Version: webpack 1.13.2

C:\Users\User\Documents\pizza-app\client\public\styles\disabledLink.css is the location of the CSS file I'm trying to load.

To me it seems like import is not looking up the correct path.

I thought with ../../../ it would start to look up the path three folder layers above.

C:\Users\User\Documents\pizza-app\client\src\components\ShoppingCartLink.js is the location of the file that should import the CSS file.

What am I doing wrong and how can I fix it?

Javascript Solutions

Solution 1 - Javascript

You don't even have to name it if you don't need to:

e.g.

import React from 'react';
import './App.css';

see a complete example here (Build a JSX Live Compiler as a React Component).

Solution 2 - Javascript

You need to use css-loader when creating bundle with webpack.

Install it:

npm install css-loader --save-dev

And add it to loaders in your webpack configs:

module.exports = {
  module: {
    loaders: [
      { test: /\.css$/, loader: "style-loader!css-loader" },
      // ...
    ]
  }
};

After this, you will be able to include css files in js.

Solution 3 - Javascript

I would suggest using CSS Modules:

React

import React from 'react';
import styles from './table.css';
 
export default class Table extends React.Component {
    render () {
        return <div className={styles.table}>
            <div className={styles.row}>
                <div className={styles.cell}>A0</div>
                <div className={styles.cell}>B0</div>
            </div>
        </div>;
    }
}

Rendering the Component:

<div class="table__table___32osj">
    <div class="table__row___2w27N">
        <div class="table__cell___2w27N">A0</div>
        <div class="table__cell___1oVw5">B0</div>
    </div>
</div>

Solution 4 - Javascript

The following imports an external CSS file in a React component and outputs the CSS rules in the <head /> of the website.

Install Style Loader and CSS Loader:

npm install --save-dev style-loader
npm install --save-dev css-loader

In webpack.config.js:

module.exports = {
module: {
rules: [
{
test: /.css$/,
use: [ 'style-loader', 'css-loader' ]
}
]
}
}

3. In a component file:

import './path/to/file.css';

Solution 5 - Javascript

CSS Modules let you use the same CSS class name in different files without worrying about naming clashes.

Button.module.css

.error {
  background-color: red;
}

another-stylesheet.css

.error {
  color: red;
}

Button.js

import React, { Component } from 'react';
import styles from './Button.module.css'; // Import css modules stylesheet as styles
import './another-stylesheet.css'; // Import regular stylesheet
class Button extends Component {
  render() {
    // reference as a js object
    return <button className={styles.error}>Error Button</button>;
  }
}

Solution 6 - Javascript

The solutions above are completely changed and deprecated. If you want to use CSS modules (assuming you imported css-loaders) and I have been trying to find an answer for this for such a long time and finally did. The default webpack loader is quite different in the new version.

In your webpack, you need to find a part starting with cssRegex and replace it with this;

{
  test: cssRegex,
  exclude: cssModuleRegex,
  use: getStyleLoaders({
      importLoaders: 1,
      modules: true,
      localIdentName: '[name]__[local]__[hash:base64:5]'
  }),
}

Solution 7 - Javascript

Install Style Loader and CSS Loader:

 npm install --save-dev style-loader
 npm install --save-dev css-loader

Configure webpack

 module: {
         loaders: [
             {
                 test: /\.css$/,
                 loader: 'style-loader'
             }, {
                 test: /\.css$/,
                 loader: 'css-loader',
                 query: {
                     modules: true,
                     localIdentName: '[name]__[local]___[hash:base64:5]'
                 }
             }
         ]
     }

Solution 8 - Javascript

You can also use the required module.

require('./componentName.css');
const React = require('react');

Solution 9 - Javascript

In cases where you just want to inject some styles from a stylesheet into a component without bundling in the whole stylesheet I recommend https://github.com/glortho/styled-import. For example:

const btnStyle = styledImport.react('../App.css', '.button')

// btnStyle is now { color: 'blue' } or whatever other rules you have in `.button`.

NOTE: I am the author of this lib, and I built it for cases where mass imports of styles and CSS modules are not the best or most viable solution.

Solution 10 - Javascript

Using extract-css-chunks-webpack-plugin and css-loader loader work for me, see below:

webpack.config.js Import extract-css-chunks-webpack-plugin

const ExtractCssChunks = require('extract-css-chunks-webpack-plugin');

webpack.config.js Add the css rule, Extract css Chunks first then the css loader css-loader will embed them into the html document, ensure css-loader and extract-css-chunks-webpack-plugin are in the package.json dev dependencies

rules: [
      {
        test: /\.css$/,
        use: [
          {
            loader: ExtractCssChunks.loader,
          },
          'css-loader',
        ],
      }
]

webpack.config.js Make instance of the plugin

plugins: [
    new ExtractCssChunks({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: '[name].css',
      chunkFilename: '[id].css'
    })
  ]

And now importing css is possible And now in a tsx file like index.tsx i can use import like this import './Tree.css' where Tree.css contains css rules like

body {
    background: red;
}

My app is using typescript and this works for me, check my repo for the source : https://github.com/nickjohngray/staticbackeditor

Solution 11 - Javascript

You can import css file if css file reside in a same folder where you want to import than just simple try this

import './styles.css'

if css file is far away from our component that navigate that place where file is reside and use this like

import '../mainstyles/styles.css'

Solution 12 - Javascript

You can import your .css file in .jsx file

Here is an example -

import Content from '../content/content.jsx';

Content Type	Original Author	Original Content on Stackoverflow
Question	venter	View Question on Stackoverflow
Solution 1 - Javascript	code4jhon	View Answer on Stackoverflow
Solution 2 - Javascript	Alexandr Lazarev	View Answer on Stackoverflow
Solution 3 - Javascript	Mihir Patel	View Answer on Stackoverflow
Solution 4 - Javascript	Arsen K.	View Answer on Stackoverflow
Solution 5 - Javascript	Amaresh Tiwari	View Answer on Stackoverflow
Solution 6 - Javascript	Ugur Yilmaz	View Answer on Stackoverflow
Solution 7 - Javascript	Bertwin Romero	View Answer on Stackoverflow
Solution 8 - Javascript	Juan Navarrete	View Answer on Stackoverflow
Solution 9 - Javascript	glortho	View Answer on Stackoverflow
Solution 10 - Javascript	nick	View Answer on Stackoverflow
Solution 11 - Javascript	Awais Niaz	View Answer on Stackoverflow
Solution 12 - Javascript	Saurabh Ramchandrarao Kulkarni	View Answer on Stackoverflow