JSFiddle - React, Tailwind, and code Playground

by lollero

HTML

<div id="sidebar">#sidebar</div>

<div class="page">.page</div>

<div class="introTop">introTop</div>

JavaScript

$(window).load(function() {
    $(window).on("resize", function(e) { //Bind resize
        
        var element = $(window).width() < 500 ? ".page" : ".introTop";
        $("#sidebar").insertBefore( element );
        
    }).trigger("resize"); //Trigger on page load
});