captions.css

/* -------------- Captions -------------- */
.caption {
  margin-bottom: 1.2em;
}
.caption > * {
  background: #f3f3f3;
  padding: 0.5ex;
  border: 1px solid #ccc;
}
.caption > figcaption {
  border: 1px solid #ccc;
  border-top: none;
  padding-top: 0.5ex;
  font-size: small;
  text-align: center;
}

/* Override Bartik's default blockquote and pre styles when captioned. */
.caption-pre > pre,
.caption-blockquote > blockquote {
  margin: 0;
}
.caption-blockquote > figcaption::before {
  content: "— ";
}
.caption-blockquote > figcaption {
  text-align: left; /* LTR */
}
[dir="rtl"] .caption-blockquote > figcaption {
  text-align: right;
}