do.css

a + a {
  text-decoration-style: dashed;
}

:focus {
  outline: thick dotted;
}

:hover {
  text-decoration-style: double;
}

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

body {
  box-sizing: border-box;
  margin: auto;
  overflow-wrap: anywhere;
  padding: 1ch 2em 3em 1em;
}

nav {
  margin: auto;
  padding-block-end: 1rem;
}

samp {
  border-radius: 100%;
  font-family: inherit;
}

menu {
  display: flow-root;
  margin: auto;
  margin-block-end: 3em;
  list-style: circle;
}

li {
  display: flex;
  flex-flow: wrap;
  float: right;
  clear: right;
}

h1 {
  margin: auto;
  margin-bottom: 61vh;
}