JSFiddle - React, Tailwind, and code Playground
HTML
<div id="container">
<div id="header" class="header">
</div>
</div>
CSS
*{margin:0;padding:0}
#container{height:2000px}
JavaScript
$(window).scroll(function() {
var sticky = $('#header'),
scroll = $(window).scrollTop();
if (scroll > 200) {sticky.addClass('fixed'); $('.logo').addClass('fixedlogo'); }
else {sticky.removeClass('fixed'); $('.logo').removeClass('fixedlogo');}
});