Quick start with pure-css & parceljs

Pure-css-parceljs.md

mkdir app
cd app
wget -r https://purecss.io/layouts/side-menu/

yarn init --yes
yarn add --dev parcel@next serve

// package.json
{
  "name": "pure-css-app1",
  "version": "1.0.0",
  "license": "MIT",
  "scripts": {
    "parcel": "parcel ./src/layouts/email/index.html",
    "parcel-build": "parcel build ./src/layouts/email/index.html",
    "serve": "serve dist"
  },
  "devDependencies": {
    "parcel": "^2.0.0-alpha.3.2"
  }
}