JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p class="extended"> Extended Element should be fully visible </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
  <p> Lorem Ipsum </p>
</div>

CSS

.container {
  width: 200px;
  border: 1px solid #d8d8d8;
  border-radius: 6px;
  height: 250px;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px;
}

.extended {
  background: #f7f7f7;
  border: 1px solid #d8d8d8;
  border-radius: 4px;
  padding: 10px;
  width: 400px;
}