html {
  font-family: sans-serif;
  font-size: max(3ch, 5vmax + 3vmin);
  line-height: 1.618;
}

body {
  margin: 0;
  display: flex;
  flex-flow: column;
  align-items: center;
  overflow-wrap: anywhere;
}

h1 {
  font-size: 1.618rem;
  font-weight: 600;
  margin: 0;
}

p {
  margin-top: 0;
  margin-bottom: 20vh;
}

p + p {
  margin-top: 30vh;
}

article {
  box-sizing: border-box;
  contain: style;
  display: flex;
  flex-direction: column;
  margin: auto;
  padding: 1em 1ch;
}

:any-link {
  text-decoration: dotted line-through;
}

:focus {
  box-shadow: 0 0 0 1ch #ec0;
  outline: thick outset;
  text-decoration-line: underline;
}