JSFiddle - React, Tailwind, and code Playground

HTML

<button id="resize">Resize</button>
<div id="text">I<br />A<br />b</div>

CSS

html, body { padding: 0; margin: 0; }
body { background-color: #000; color: #fff; font-family: sans-serif; font-size: 50px; word-spacing: -10px; letter-spacing: -5px; }

JavaScript

$(function(){
    $("#resize").click(function(){
        $("#text").css("font-size", parseInt($("#text").css("font-size"), 10) + 10 + "px");
    });
});