const purify = require("purify-css") // Reference of all HTML files from root directory let content = ['./*.html']; // Reference of all CSS files from root directory let css = ['../.intermediate/simulator.css']; let options = { output: '../www/simulator.css', whitelist: ['is-multiple', 'is-loading', 'is-narrow', 'is-active', 'climate-zone', 'grid-recharge', 'is-max-desktop', 'is-max-widescreen', 'line'], minify: false, info: false }; purify(content, css, options);