JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" id="toggle">Show/Hide</a>

<div id="div1"></div>
<div id="div2"></div>

CSS

#div1{
    height: 100px;
    border: 1px blue solid;
}
#div2{
    height: 700px;
    border: 1px red solid;
}

JavaScript

$(document).ready(function(){
    
    $("#div2").hide();
    $("#toggle").click(function() {
        $("#div2").slideToggle();
    });
});