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A Gatsby plugin for creating independent global CSS styles, and automatically placing them at the top of the <head> element.

The plugin does not rely on any third party packages (except React), however the core global-styles modules have been split out to a separate package to keep it flexible and lean.


npm install --save gatsby-plugin-global-styles @nfront/global-styles


yarn add gatsby-plugin-global-styles @nfront/global-styles

Why to use

gatsby-plugin-global-styles automatically combines your own global style sheets into one collective global style tag, and makes sure the global style tag ends up where you want it to be in the <head> element.

By default, the global style tag is placed at the top of <head>.

This package is particularly useful when utilizing several CSS styling systems.

For example, your site might be using styled-components and Material-UI. If you want to add your own global styling to this mix, it is important that the order of the style tags in the website’s or app’s <head> element is correct (properties in lower style tags overwrite the same properties in style tags above it).

By using gatsby-plugin-global-styles and specifying the path to your GlobalStyleComponent.js file via the pathToConfigModule option (see below), the compilation and injection of your global styles is taken care of automatically by helper methods under the hood.

Lastly, it is also possible to pass in props, like a theme, to your global style sheet. See below for instructions.

How to use

In gatsby-config.js:

// In your gatsby-config.js
module.exports = {
  plugins: [
      resolve: `gatsby-plugin-global-styles`,
      options: {
        pathToConfigModule: `src/styles/GlobalStyleComponent`,
        props: {
          theme: `src/styles/theme`,
          other: {
            light: true

In src/utils/GlobalStyleComponent:

import { createGlobalStyle } from '@nfront/global-styles';
import reset from '../styles/reset';
import globalStyle from '../styles/globalStyle';

const GlobalStyleComponent = createGlobalStyle`

export default GlobalStyleComponent;

Here, reset and globalStyle are two JavaScript files that each contain their own global styles that we want to compile into one global style element.

You can include just one file here, if you like. Alternatively, several files can be specified if you have several global style sheets you want to compile into one style tag.

As an example, in src/styles/globalStyle:

import { css } from '@nfront/global-styles';

const globalStyles = css`
  .my-class2 {
    margin-bottom: 10rem;

  html {
    background-color: blue;

export default globalStyles;


  • pathToConfigModule: (string) The path to the file in which you export your global style component.
  • props.theme: (string) The path to the theme that can be used in any of your global style sheet files. See below for format
  • props.other: Other props you want to pass to the global styles. For example: light / dark

How to use props (like theme) in a global style file

To use props, like a theme, in a global style, specify props.theme and props.other in gatsby-config.js, as shown above.

A theme can be any module exporting a normal object. Its propertis are then accessible inside any global styles file:

In ./src/styles/theme:

const theme = {
  fontFamily: [`"Roboto", "Helvetica", "Arial", "sans-serif"`].join(','),
  primaryColor: blue;

export default theme;

Or a MUI theme in ./src/styles/theme:

import { createMuiTheme } from '@material-ui/core/styles';
import blue from '@material-ui/core/colors/blue';
import orange from '@material-ui/core/colors/orange';
import red from '@material-ui/core/colors/red';

const muiTheme = createMuiTheme({
  breakpoints: {
    xs: 0,
    sm: 600,
    md: 960,
    lg: 1280,
    xl: 1920,
  palette: {
    primary: blue,
    secondary: orange,
    error: red,
    type: 'light',
    text: {
      primary: 'rgba(0, 0, 0, 0.8)',
  typography: {
    useNextVariants: true,
    fontFamily: [`"Roboto", "Helvetica", "Arial", "sans-serif"`].join(','),
    h1: {
      fontSize: '2.25rem',
      fontFamily: [`"Roboto-Slab", "Roboto", "Helvetica", "Arial", sans-serif"`].join(','),
      color: 'rgba(0, 0, 0, 0.8)',
      lineHeight: 1.1,
      letterSpacing: 'normal',

export default muiTheme;

In src/styles/globalStyle:

import { css } from '@nfront/global-styles';

const globalStyles = css`
  body {
    color: ${props => (props.light ? 'white' : 'black')};
    font-family: ${props => props.theme.typography.fontFamily};

export default globalStyles;

How to reorder the style tag in the head element

If you are using the typography.js plugin and want your global style tag above the typography.js tag, just import this plugin below the typography.js plugin in gatsby-config.js.

The opposite can be achieved by reversing the order.

To manually control the order, sort the head tags as desired in gatsby-ssr.js:

import GlobalStyleComponent from './src/styles/GlobalStyleComponent';

function promote(toTop, array) {
  for (let i = 0; i < array.length; i += 1) {
    if (array[i] && array[i].key === toTop) {
      const a = array.splice(i, 1);

export const onPreRenderHTML = ({ getHeadComponents, replaceHeadComponents }) => {
  const headComponents = getHeadComponents();
  promote(GlobalStyleComponent.globalStyle.elementId, headComponents);
  promote('TypographyStyle', headComponents);


Full example

A full example, including gatsby-plugin-global-styles, typography.js, Material-UI and styled-components can be found in the starter: gatsby-starter-global-styles.

Syntax highlighting

It is easy to add syntax highlighting. See the styled-components docs for extensions that enable this in various IDEs.

For Visual Studio Code, the Babel JavaScript plugin is one option that works well.

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