JSFiddle - React, Tailwind, and code Playground

HTML

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

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

CSS

.container {
  width: 200px;
  height: 50px;
  border: 1px solid black;
  display: inline-table;
}

.content {
  background-color: red;
  width: 30%;
  height: 100%;
}