JSFiddle - React, Tailwind, and code Playground

by Julien

HTML

<div class="green"></div>

<div class="blue">
  <div class="sticky">Sticky</div>
</div>

<div class="red"></div>

CSS

.blue {
  background-color: blue;
  height: 500px;
}

.sticky {
  width: 200px;
  background-color: yellow;
  text-align: center;
  top: 0;
}

.red {
  background-color: red;
  height: 800px;
}

.green {
  background-color: green;
  height: 200px;
}

JavaScript

$(document).ready(function() {
  var stickyTop = $('.sticky').offset().top;

  $(window).scroll(function() {
    var windowTop = $(window).scrollTop();

    if (stickyTop < windowTop) {
      $('.sticky').css('position', 'fixed');
    } else {
      $('.sticky').css('position', 'relative');
    }
  });
});