<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2> </div> </div>

window.onscroll = function () { console.clear();if(currentScrollPercentage()<=25){console.log("hyy 25")}else if(currentScrollPercentage()<=50){console.log("hyyy 50")}else if(currentScrollPercentage()<=75){console.log("hyy 75")}else{console.log("hyy 100")} }; function currentScrollPercentage() { return ((document.documentElement.scrollTop + document.body.scrollTop) / (document.documentElement.scrollHeight - document.documentElement.clientHeight) * 100); }