chooze.css

:focus { outline: thick dotted }
:any-link { color: unset }
:any-link:hover { text-decoration-style: double }

* { box-sizing: border-box }
li { flex-basis: 100% }
ol { 
  list-style-type: none;
  display: flex;
  flex-flow: row wrap;
}

@media (orientation: landscape) {
  li { margin-block: 2ex }
  ol > li {
    flex-basis: calc(100% / 3);
  }  
  .cross > li { flex-basis: 50% }
  .cross > :nth-child(1) { order: 1 }
  .cross > :nth-child(2) { order: 3 }
  .cross > :nth-child(3) { order: 5 }
  .cross > :nth-child(4) { order: 7 }
  .cross > :nth-child(5) { order: 9 }
  .cross > :nth-child(6) { order: 11 }
  .cross > :nth-child(7) { order: 2 } 
  .cross > :nth-child(8) { order: 4 }
  .cross > :nth-child(9) { order: 6 }
  .cross > :nth-child(10) { order: 8 }
  .cross > :nth-child(11) { order: 10 }
  .cross > :nth-child(12) { order: 12 }
}

@media (orientation: portrait) {
  .cross > :nth-child(1) { order: 1 }
  .cross > :nth-child(2) { order: 12 }
  .cross > :nth-child(3) { order: 11 }
  .cross > :nth-child(4) { order: 10 }
  .cross > :nth-child(5) { order: 9 }
  .cross > :nth-child(6) { order: 8 }
  .cross > :nth-child(7) { order: 7 } 
  .cross > :nth-child(8) { order: 6 }
  .cross > :nth-child(9) { order: 5 }
  .cross > :nth-child(10) { order: 4 }
  .cross > :nth-child(11) { order: 3 }
  .cross > :nth-child(12) { order: 2 }
}

p {
  max-width: 30em;
}

html {
  font-family: sans-serif;
  font-size: max(3ch, 4vmin);
  line-height: 1.618;
}

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

footer,
header {
  contain: content;
  display: flow-root;
  padding: 1em;
}

h1 {
  font-weight: unset;
	font-size: 1.382em;
	margin: 0;
}

h2 {
  font-weight: unset;
	font-size: 1.236em;
	margin: 0;
}

article {
  contain: content;
  display: flex;
  flex-flow: column;
}

dl {
  min-height: 12em;
  padding: 1ex 1ch;
}

figure {
  margin: 0;
  padding: 1em;
}

figcaption { 
  font-size: 1.236rem;
}