:root {
  --md-admonition-icon--reference: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><title>book-education</title><path d="M8.82 17L13 19.28V22H6C4.89 22 4 21.11 4 20V4C4 2.9 4.89 2 6 2H7V9L9.5 7.5L12 9V2H18C19.1 2 20 2.89 20 4V12.54L18.5 11.72L8.82 17M24 17L18.5 14L13 17L18.5 20L24 17M15 19.09V21.09L18.5 23L22 21.09V19.09L18.5 21L15 19.09Z" /></svg>')
}
.md-typeset .admonition.reference,
.md-typeset details.reference {
  border-color: rgb(99,102,106);
}
.md-typeset .reference > .admonition-title,
.md-typeset .reference > summary {
  background-color: rgba(99,102,106, 0.1);
}
.md-typeset .reference > .admonition-title::before,
.md-typeset .reference > summary::before {
  background-color: rgb(99,102,106);
  -webkit-mask-image: var(--md-admonition-icon--reference);
          mask-image: var(--md-admonition-icon--reference);
}