JSFiddle - React, Tailwind, and code Playground

HTML

<div class="root">
  <div style="background:blue;">div #1 </div>
  <div style="background:yellow; overflow:hidden; padding:4px;">
    <p>
      div #2
    </p>
    <div style="display:grid;grid-template-rows: 50px 1fr; border: solid 2px black;">
      <div style="background: grey;">
        <p>div #2.1</p>
      </div>
      <div style="overflow:scroll;">
        <p>div #2.2 </p>
        <p>I cannot scroll here</p>
        <p>&nbsp;</p>
        <p>&nbsp;</p>
        <p>&nbsp;</p>
        <p>&nbsp;</p>
        <p>&nbsp;</p>
        <p>I cannot scroll here</p>
      </div>
    </div>
  </div>
</div>

CSS

.root {
  background-color: red;
  height: 300px;
  width: 500px;
  display: grid;
  grid-template-rows: 100px 1fr;
  border: solid 2px black;
}