issue.xpub.nl/07/style.css

html {
  font-size: 16px;

  @media (max-width: 1000px) {
    font-size: calc(12px + .4vw);
  }
}

body {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.box {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  text-align: center;
  align-items: center;
  justify-content: center;
  height: 12rem;
}

h1 {
  font-size: 4rem;
}

h2 {
  font-size: 2rem;
}

body {
  font-size: 1rem;
}