JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//tinymce.cachefly.net/4.1/tinymce.min.js"></script>
<textarea>Easy! You should check out MoxieManager!</textarea>

JavaScript

tinymce.init({
    selector: 'textarea',
    toolbar: 'fontsizeselect',
    fontsize_formats: "8px 10px 12px 14px 18px 24px 36px"
});