JSFiddle - React, Tailwind, and code Playground

HTML

<div id='container' style='background-color:red;'>
TEST
</div>
<button onclick='gofullscreen();'>FULLSCREEN</button>

JavaScript

function gofullscreen()
{
    var con = document.getElementById("container");
    setTimeout(() => {
    	con.requestFullscreen();
    }, 2500);
}