html {
  font: max(2em, 5vmax)/1.618 sans-serif;
}

body {
  margin: auto;
  overflow-wrap: anywhere;
}

article { 
  font-size: inherit;
  margin: 1em;
}

h1 {
  margin: 0;
}

span {
  font-weight: lighter;
}

p {
  margin: auto;
}