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>