JSFiddle - React, Tailwind, and code Playground

HTML

<input id="Button1" type="button" value="button" /><br />
<div id="Div1" style="display:none">
    <input id="Text1" type="text" />
</div>
<input id="Text2" type="text" />

JavaScript

$("#Text2").focus();

$("#Button1").click(function(){
    $("#Div1").toggle("slow").find("input:text").focus();
});