JSFiddle - React, Tailwind, and code Playground

by D S

HTML

<p class="demo">Hey</p>

<button onclick="add()">add</button>

CSS

@import url(http://fonts.googleapis.com/css?family=Roboto+Slab:400,700);

.demo{
    font-size:90px;
    
    font-family: 'Roboto Slab', serif;
}

JavaScript

function add(){
$(".demo").append('y');
}