JSFiddle - React, Tailwind, and code Playground
HTML
<p>Text 1</p>
<SCRIPT>
var p = document.createElement("p");
p.innerHTML = "aaa";
var scripts = document.getElementsByTagName('script');
var current = scripts[scripts.length - 1];
current.parentNode.insertBefore(p, current);
</SCRIPT>
<p>Text 2</p>