/* The chapter titles in SUMMARY.md already carry the book's own numbering
   (01, 07b, 10b, Appendix A, ...), so hide mdBook's automatic "1." "2." ...
   sidebar counters, which would otherwise disagree with them. */
.chapter li.chapter-item > a > strong,
.chapter li.chapter-item > div > strong {
    display: none;
}