JSFiddle - React, Tailwind, and code Playground

by mihaibirsan

HTML

<html>
  <head>
    <title>CSS Aspect Fit</title>
  </head>
  <body>
    <div class="viewport">
      <p>
        This should be a 16:9 viewport that fits the window.
      </p>
      <img src="" alt="" />
    </div>
  </body>
</html>

CSS

body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: white;
  font-size: min(1vw, 1.778vh);
}

div.viewport {
  width: 100em;
  height: 56.25em;
  background-color: lightblue;
}

div.viewport > p {
  font-size: 3em;
  text-align: center;
}