JSFiddle - React, Tailwind, and code Playground

HTML

<div class="main">
  <div>
    <p>Text</p>
    <p>Längerer Text</p>
    <p>Eine ganze Lange Überschrift</p>
  </div>
  <div>
    <p>1</p>
    <p>10</p>
    <p>100</p>
  </div>
</div>

CSS

.main {
  display: flex;
}

.main  div:first-child {
  width: 50%;
  border:solid 1px red;
}

.main div:last-child {
  width: 20px;
  border:solid 1px blue;
}