footer {
  margin-top: 50px;
  border-top: 1px solid silver;
  font-size: 0.8em;
}

footer ol {
  padding-left: 20px;
}

auto_count {
  counter-reset: footnotes;
}

[aria-describedby="footnote-label"] {
  counter-increment: footnotes;
  text-decoration: none;
  color: inherit;
  cursor: default;
  outline: none;
}
[aria-describedby="footnote-label"]::after {
  content: '[' counter(footnotes) ']';
  vertical-align: super;
  font-size: 0.5em;
  margin-left: 2px;
  color: blue;
  text-decoration: underline;
  cursor: pointer;
}

[aria-describedby="footnote-label"]:focus::after {
  outline: thin dotted;
  outline-offset: 2px;
}

[aria-label="Back to content"] {
  font-size: 0.8em;
}

footer :target {
  background: #d9e5ff;
}

.visually-hidden {
  position: absolute;
  clip: rect(0 0 0 0);
  visibility: hidden;
  opacity: 0;
  }