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<body>
  <div class="container">
    <h1>Hello World</h1>
    <ul>
      <li>List 1</li>
      <li>List 2</li>
      <li>List 3</li>
    </ul>
  </div>
</body>

html {
  font-size: 10px;
}

body {
  font-size: 50px;
}

h1 {
  font-size: 2rem;
}

ul {
  font-size: 1.5rem;
}

li {
  font-size: 1.5rem;
}

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