JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="content">
        __________________________SHOW_ME
  </div>
</div>

CSS

.container {
  position: relative;
  padding: 10px;
  overflow: hidden;
  width: 10em;
  border: 1px solid;
  height: 50px;
}

.content {
  position: absolute;
  width:10em;
  overflow: auto;
  border: 5px solid red;
}