body {
  margin: 0;
  font-size: 16px;
}

#navbar {
  display: flex;
  justify-content: space-between;
  border-bottom: 2px solid black;
  padding: .5rem;

  & > div {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  & > * > a {
    text-decoration: none;
    color: black;
  }
}

main {
  margin: auto;
  padding: 2rem;
  max-width: 100ch;
}

p {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  text-align: center;
  margin-block: 0;
}

summary {
  cursor: pointer;
  margin-bottom: 1rem;
}

li {
  margin-bottom: .5rem;
}

.annotation {
  width: 25ch;
  padding: 2ch;
  position: absolute;
  border: 1px solid black;
  color: #ddd;
  background-color: #500d;
}