JSFiddle - React, Tailwind, and code Playground

HTML

<div class="outer">
  <div class="problem"></div>
  <div class="inner"></div>
</div>

CSS

.outer {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.problem {
  height: 200px;
}
.inner {
  aspect-ratio: 16/9;
  background-color: blue;
}

html,body {
  margin: 0;
  font-family: sans-serif;
}