.markdown-body a.footnote-ref {
  text-decoration: none;
}

.footnotes {
  font-size: .85em;
  opacity: .8;
}

.footnotes li[role="doc-endnote"] {
  position: relative;
}

.footnotes .footnote-back {
  position: absolute;
  font-family: initial;
  top: .2em;
  right: 1em;
  text-decoration: none;
}

.inline-math.invalid,
.multiple-math.invalid {
  color: rgb(255, 105, 105);
}