JSFiddle - React, Tailwind, and code Playground
HTML
<input type="range" min="100" max="200" id="slider">
<div id='text'>
asdfasd sdaf ads fasd sda fsad
</div>
JavaScript
$('#slider').on('input', function() {
var val = $(this).val();
$('#text').css("font-size", (val + "%"));
});