JSFiddle - React, Tailwind, and code Playground

HTML

<button onclick="javascript:myFunction()">Open Editor</button>

<script>
        function myFunction() {
            var myWindow = window.open("", "MyEditorWindow");
            myWindow.document.write("<body contenteditable style='font: 2em/1.5 monospace;padding:40px;'>");
        }
    </script>