JSFiddle - React, Tailwind, and code Playground

HTML

<button onclick="activate_gif()">
  Click me
</button>
<div class="myDiv">
  <img id="img1" src="https://i.imgur.com/Rsc0qOw.gif">
</div>

CSS

.myDiv{
  width: 500px;
  height: 300px;
}

.myDiv img{
  width: 100%;
  height: 100%;
}

JavaScript

function activate_gif(){
	document.getElementById("img1").src = "https://i.imgur.com/Rsc0qOw.gif";
}