JSFiddle - React, Tailwind, and code Playground

HTML

<!doctype html>
<html>
  <head>
    <title>My website</title>
    <link rel="stylesheet" ref="style.css" />
  </head>
  <body>
    <h1 class="title">Top-level title</h1>
    <h2 class="subtitle" id="subtitle-1">Subtitle 1</h2>
    <h2 class="subtitle" id="subtitle-2">Subtitle 2</h2>
  </body>
</html>

CSS

body {
  background-color: blue;
}

.title {
  font-size: 25px;
  color: purple;
}

.subtitle {
  font-size: 20px;
}

#subtitle-2 {
  color: red;
}