JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Temperature Convertor</h1>

<p>Celcius: <span id="c"></span></p>

<p>Fahrenheit: <span id="f"></span></p>

CSS

#c, #f {
    color: purple;
    font-weight: bold;
}

JavaScript

var temp_c = 100;
var temp_f = temp_c * 1.8 + 32;

$('#c').html(temp_c);
$('#f').html(temp_f);