JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js"></script>
<div ng-app="myApp">

  <div ng-controller="hihi">
    <div ng-init="ha = 42"></div>
    <input type="text" ng-model="ha"> {{ ha }}

    <div ng-controller="hihi">
      <input type="text" ng-model="ha"> {{ ha }}
    </div>
  </div>


</div>

CSS

.helloworld {
  background: orange
}

JavaScript

angular.module("myApp", [])
    .controller("hihi", function($scope) {

      console.log("Running the controller code")

    });