JSFiddle - React, Tailwind, and code Playground
HTML
<script src="http://cdn.bootcss.com/angular.js/1.3.14/angular.js"></script>
<body>
<p>Without the ng-app directive, HTML will display the expression as it is, without solving it.</p>
<div ng-app='dd'>
<p>My first expression: {{ 5 + 5 }}</p>
</div>
</body>