op.css

:focus {
  outline-style: dashed;
  outline-width: thick;
}

html {
  font-family: ui-monospace, monospace;
  font-size: calc(1em + 1vw + 1vh);
  line-height: 2;
}

body {
  box-sizing: border-box;
  margin: 0;
  padding: 1rem;
  padding-inline: calc(1rem + 3vw);
  overflow-wrap: break-word;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
  margin-block-end: 1ex;
}

li {
  display: block;
  margin: 0;
  margin-block-end: 1ex;
  line-height: 1.1;
}

h1,
i {
  font-size: 2rem;
  font-weight: 300;
  font-style: inherit;
  margin: 0;
}

mark {
  display: table;
}

aside {
  font-size: 1.5rem;
  line-height: normal;
  margin-block: 1rem;
}