JSFiddle - React, Tailwind, and code Playground

HTML

<div class="sticky parent">
  <div class="sticky child"><a href="#">sticky</a></div>
</div>

CSS

.sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
}
.parent {
  background: gray;
  height: 150vh;
}
.child {
  background: white;
}