JSFiddle - React, Tailwind, and code Playground

by Ivan KostolnĂ˝

HTML

<button id='button'>test</button>
<br>
<iframe src="http://www.abc.sk/pridat.aspx" width='900' height='500'></iframe>

JavaScript

$("#button").click(function(){
    $('iframe').find('input').val('value');
});