JSFiddle - React, Tailwind, and code Playground

HTML

<div class="a">
     DIVWITHOVERFLOWAUTO
</div>
<div class="b">
     DIVWITHOVERFLOWOVERLAY
</div>

CSS

div.a{
  background red;
  width: 100px;
  overflow: auto;
}

div.b{
  background: red;
  width: 100px;
  overflow: overlay;
}