JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.20/angular.min.js"></script>

<div ng-app>
    <input type="text" name="name" ng-model="name" placeholder="Digite seu nome..." />
    <h1>Olá {{name}} !</h1>
</div>

CSS

body {
    padding: 30px;
}

input {
    height: 20px;
    padding: 10px;
    font-size: 15px;
}