angular.json "root" code example

Example 1: angular.json styles

"architect": {
  "build": {
    "builder": "@angular-devkit/build-angular:browser",
    "options": {
      "styles": [
        "src/styles.css",
        "src/more-styles.css",
      ],
      ...

Example 2: angular json and cli json file

npm install -g @angular/cli

npm install @angular/cli