.essay a[href^="http"]::after,
.essay a[href$=".pdf"]::after {
  display: inline-block;
  margin-left: 0.15em;
  text-indent: 0;
  font-size: 0.62em;
  line-height: 1;
  vertical-align: 0.45em;
  font-style: normal;
  font-weight: 400;
  color: var(--text-faint);
  text-decoration: none;
  font-variant-caps: normal;
}
.essay a[href^="http"]::after { content: "\2197"; font-family: var(--font-body); }
.essay a[href*="arxiv.org"]::after { content: "\03C7"; font-family: var(--font-body); font-style: italic; font-size: 0.75em; }
.essay a[href*="wikipedia.org"]::after { content: "W"; font-family: var(--font-body); font-size: 0.7em; }
.essay a[href*="github.com"]::after { content: "{}"; font-family: var(--font-mono); }
.essay a[href*="doi.org"]::after { content: "doi"; font-family: var(--font-body); font-variant-caps: all-small-caps; font-size: 0.75em; letter-spacing: 0.03em; }
.essay a[href*="scottaaronson"]::after { content: "SA"; font-family: var(--font-body); font-variant-caps: all-small-caps; font-size: 0.75em; }
.essay a[href*="bbchallenge.org"]::after { content: "BB"; font-family: var(--font-body); font-variant-caps: all-small-caps; font-size: 0.75em; }
.essay a[href$=".pdf"]::after { content: "pdf"; font-family: var(--font-body); font-variant-caps: all-small-caps; font-size: 0.75em; letter-spacing: 0.03em; }
.essay a[href^="#"]::after { content: none; }