nav a:nth-of-type(4) {
  text-decoration: underline 3px;
  text-underline-offset: 2px;
}
h2:not(h2:first-of-type) + figure img {
  background: #f5f5f5;
}
h2:not(h2:first-of-type) + figure {
  box-sizing: border-box;
  border: ridge #f0f0f0;
  padding: 0.5rem;
}
h1 + ul {
  text-align: left;
}