JSFiddle - React, Tailwind, and code Playground
by fracmak
HTML
<div style="height: 5000px;"></div>
<div id="positioned" style="top: 100px; left: 0; height: 20px; background: #000; position: fixed;"></div>
JavaScript
var elem = $('#positioned');
console.log(elem.position().top);
$( window ).scrollTop( 1000 );
console.log(elem.position().top);