Getting started

Since Pollen is just CSS variables, it works everywhere without any preprocessor or environment requirements.

Quick Start

Install Pollen from NPM and include its CSS in your project, or link direct to it on the Unpkg CDN

Module import

npm i pollen-css

import 'pollen-css';

Requires CSS support in your bundler (eg: Webpack, Rollup, etc)

CSS import (CDN)

@import "https://unpkg.com/pollen-css";

HTML Link (CDN)

<link rel="stylesheet" href="https://unpkg.com/pollen-css" />

Once Pollen is included in your project, you can use its variables anywhere

Configuration

The real power of Pollen comes when you begin to extend and customise the default set of CSS variables. Every part of the library can be customised, extended, or stripped out with the pollen command line build tool. Instead of importing the default pollen.css file, create a pollen.config.js config file in the root of your project and run pollen to generate your own custom design system. Then import the generated CSS file as you normally would.

Read more in Configuration.

IE Support

Pollen requires a small shim to work in Internet Explorer 11 and below, as it doesn't support the CSS variables that the library is built on. Enable IE support with the included shimmie utility from pollen-css/utils

import { shimmie } from 'pollen-css/utils';

shimmie();

Shimmie will check for support and, if required, dynamically load and apply the excellent css-vars-ponyfill shim with sane configuration.

Editor Integration

VS Code

Enable intellisense autocompletion for Pollen in VS Code by installing the CSS Var Complete extension and adding Pollen's CSS in a .vscode/settings.json file in the root of your project, along with some optional additional configuration.

If you have configured a custom Pollen bundle make sure you add the output CSS file to the cssvar.files array instead of the default pollen.css bundle.

.vscode/settings.json

{
  "cssvar.files": [
    // Or your custom Pollen bundle
    "./node_modules/pollen-css/pollen.css",
  ],
  // Do not ignore css files in node_modules, which is ignored by default
  "cssvar.ignore": [],
  // Use Pollen's inbuilt variable ordering
  "cssvar.disableSort": true,
  // Add support for autocomplete in other file types
  "cssvar.extensions": ["css", "html", "jsx", "tsx"]
}