Here is a reference to React's docs. Basically you need to name your file {file_name}.module.css, where the file extension needs to end with module.css
Then you can use like this, as shown on React example:
Class based component
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>;
}
}
Functional base component
import React, { Component } from 'react';
import styles from './Button.module.css'; // Import css modules stylesheet as styles
import './another-stylesheet.css'; // Import regular stylesheet
const Button = () => {
return <button className={styles.error}>Error Button</button>
}