.heading {
  margin-top: 1em;
  margin-bottom: 0.5em;
  line-height: 1.5;

  /**
   * offset (approximately) with sticky header so jumped-to content isn't hiding behind it.
   * note: use rem so it isn't based on the heading's font size.
   */
  scroll-margin-top: 5.5rem;
}

/* special bottom border for <h2>s */
.h2 {
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--kinda-light);
}

/* sub-heading anchor styles */
.anchor {
  margin: 0 0.25em;
  padding: 0 0.25em;
  color: var(--medium-light);
  font-weight: 300;
  text-decoration: none;
  opacity: 0; /* overridden on hover below (except on small screens) */
}
.anchor::before {
  content: "\0023"; /* pound sign `#`, done here to keep content DOM cleaner */
}
.anchor:hover {
  color: var(--link);
}
/* make anchor link show up on hover over its corresponding heading */
.heading:hover .anchor {
  opacity: 1;
}

@media screen and (max-width: 768px) {
  .heading {
    scroll-margin-top: 6.5rem;
  }

  /* don't require hover to show anchor link on small (likely touch) screens */
  .anchor {
    opacity: 1;
  }
}