.stylelintrc.js

// stylelint configuration
// https://stylelint.io/user-guide/configuration/

module.exports = {
    // The standard config based on a handful of CSS style guides
    // https://github.com/stylelint/stylelint-config-standard
    extends: 'stylelint-config-standard',

    ignoreFiles: ['**/*.js'],

    plugins: [
        'stylelint-scss',
        // stylelint plugin to sort CSS rules content with specified order
        // https://github.com/hudochenkov/stylelint-order
        'stylelint-order'
    ],

    rules: {
        indentation: 4,

        'at-rule-no-unknown': null,
        'scss/at-rule-no-unknown': true,

        'property-no-unknown': [
            true,
            {
                ignoreProperties: [
                    // CSS Modules composition
                    // https://github.com/css-modules/css-modules#composition
                    'composes'
                ]
            }
        ],

        'selector-pseudo-class-no-unknown': [
            true,
            {
                ignorePseudoClasses: [
                    // CSS Modules :global scope
                    // https://github.com/css-modules/css-modules#exceptions
                    'global',
                    'local'
                ]
            }
        ],

        // Opinionated rule, you can disable it if you want
        'string-quotes': 'single',

        // https://github.com/hudochenkov/stylelint-order/blob/master/rules/order/README.md
        'order/order': [
            'custom-properties',
            'dollar-variables',
            'declarations',
            'at-rules',
            'rules'
        ],

        // https://github.com/hudochenkov/stylelint-order/blob/master/rules/properties-order/README.md
        'order/properties-order': []
    }
};