zeit-next-sass-modules v0.1.0
Next.js + Sass
Import .sass
or .scss
files in your Next.js project
Installation
npm install --save zeit-next-sass-modules node-sass
or
yarn add zeit-next-sass-modules node-sass
Usage
The stylesheet is compiled to .next/static/css
. Next.js will automatically add the css file to the HTML.
In production a chunk hash is added so that styles are updated when a new version of the stylesheet is deployed.
Without CSS modules
Create a next.config.js
in your project
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass();
Create a Sass file styles.scss
$font-size: 50px;
.example {
font-size: $font-size;
}
Create a page file pages/index.js
import '../styles.scss';
export default () => <div className="example">Hello World!</div>;
With CSS modules
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass();
Create a Sass file styles.module.scss
$font-size: 50px;
.example {
font-size: $font-size;
}
Create a page file pages/index.js
import css from '../styles.module.scss';
export default () => <div className={css.example}>Hello World!</div>;
With CSS modules and options
You can also pass a list of options to the css-loader
by passing an object called cssLoaderOptions
.
For instance, to enable locally scoped CSS modules, you can write:
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass({
cssLoaderOptions: {
importLoaders: 1,
localIdentName: '[local]___[hash:base64:5]'
}
});
Create a SCSS file style.module.scss
.example {
font-size: 50px;
}
Create a page file pages/index.js
that imports your stylesheet and uses the hashed class name from the stylesheet
import css from '../style.module.scss';
const Component = props => {
return <div className={css.example}>...</div>;
};
export default Component;
Your exported HTML will then reflect locally scoped CSS class names.
For a list of supported options, refer to the webpack css-loader
README.
With SASS loader options
You can pass options from node-sass
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass({
sassLoaderOptions: {
includePaths: ['absolute/path/a', 'absolute/path/b']
}
});
PostCSS plugins
Create a next.config.js
in your project
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass();
Create a postcss.config.js
module.exports = {
plugins: {
// Illustrational
'postcss-css-variables': {}
}
};
Create a CSS file styles.scss
the CSS here is using the css-variables postcss plugin.
:root {
--some-color: red;
}
.example {
/* red */
color: var(--some-color);
}
When postcss.config.js
is not found postcss-loader
will not be added and will not cause overhead.
You can also pass a list of options to the postcss-loader
by passing an object called postcssLoaderOptions
.
For example, to pass theme env variables to postcss-loader, you can write:
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass({
postcssLoaderOptions: {
parser: true,
config: {
ctx: {
theme: JSON.stringify(process.env.REACT_APP_THEME)
}
}
}
});
Configuring Next.js
Optionally you can add your custom Next.js configuration as parameter
// next.config.js
const withSass = require('zeit-next-sass-modules');
module.exports = withSass({
webpack(config, options) {
return config;
}
});
5 years ago