JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://benalman.com/code/projects/jquery-dotimeout/jquery.ba-dotimeout.js"></script>
<body style="min-height:2000px;min-width:2000px;">

<div class="fixed">
    <ul>
        <li>Test1</li>
        <li>Test1</li>
        <li>Test1</li>
        <li>Test1</li>
    </ul>
</div>

</body>

CSS

.fixed {
    padding:20px;
    border:1px solid #ccc;
    position:absolute;
    top:0;
    left:0;
}

JavaScript

$(window).scroll(function(){
        $.doTimeout( 'scroll', 250, function(){
            $(".fixed").stop(false, true).animate({ "top" : $(window).scrollTop()}, 200); 
        });
    });