JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.4.2/vue.js"></script>
<div id="app">
  <div v-cloak>
    Our App has loaded
  </div>
  
  <div v-if="!$data">
    Loading..... (spinner)
  </div>
</div>
<br>
<button onClick="loadApp()">Load App</button>

CSS

[v-cloak] {
  display:none
}

JavaScript

function loadApp() {
	
	new Vue({
  	el:"#app"
  
  })
}