JSFiddle - React, Tailwind, and code Playground

HTML

<div class="FixedHeightContainer">
  <h2>Title</h2>
  <div class="Content">
    blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah
    blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah...
    ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah
    blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah...
    ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah... ..blah blah blah...
  </div>
</div>

CSS

.FixedHeightContainer {
  float: right;
  height: 350px;
  width: 250px;
  padding: 3px;
  background: #f00;
}

.Content {
  height: 224px;
  overflow: auto;
  background: #fff;
}