PostCSS @property fallback

PostCSS plugin providing @property's initial-value fallback.

@property --bg-color {
  syntax: '<color>';
  initial-value: magenta;
  inherits: true;
}

@property --bg-color {
  syntax: '<color>';
  initial-value: magenta;
  inherits: true;
}
--bg-property: magenta;

Usage

Step 1: Install plugin:

npm install --save-dev postcss postcss-at-property-fallback

Step 2: Check your project for existing PostCSS config: postcss.config.js in the project root, "postcss" section in package.json or postcss in bundle config.

If you do not use PostCSS, add it according to official docs and set this plugin in settings.

Step 3: Add the plugin to plugins list:

module.exports = {
  plugins: [
+   require('postcss-at-property-fallback'),
    require('autoprefixer')
  ]
}