JSFiddle - React, Tailwind, and code Playground

HTML

<div id="div1">This div is going to be hidden.</div>
<div id="div2">This div was hidden.</div>

CSS

#div2 { display : none; }

JavaScript

$(document).ready(function() {
    $("#div1").delay(10000).hide(0, function() {
        $("#div2").show();
    });
    
});