docusaurus-numbered-headings/src/styles/iso-2145.css

A Docusaurus plugin that automatically adds numbered headings with support for ISO 2145 and USA Classic numbering conventions

/* Docusaurus Numbered Headings Plugin Styles - ISO 2145 Convention */
/* Format: 1, 1.1, 1.1.1, 1.1.1.1 (decimal numbering) */

/* body {
  counter-reset: h2counter;
} */

/* Starts on h2 because h1 is reserved for the title of the page in Docusaurus. */

h2 {
  counter-increment: h2counter;
  counter-reset: h3counter;
}

h2::before {
  content: counter(h2counter) ". ";
}

h3 {
  counter-increment: h3counter;
  counter-reset: h4counter;
}

h3::before {
  content: counter(h2counter) "." counter(h3counter) ". ";
}

h4 {
  counter-increment: h4counter;
  counter-reset: h5counter;
}

h4::before {
  content: counter(h2counter) "." counter(h3counter) "." counter(h4counter) ". ";
}

h5 {
  counter-increment: h5counter;
}

h5::before {
  content: counter(h2counter) "." counter(h3counter) "." counter(h4counter) "."
    counter(h5counter) ". ";
}

/* Table of Contents Numbering - ISO 2145 Convention */
ul.table-of-contents > li::before {
  content: counter(toc-h2) ". ";
}

ul.table-of-contents > li > ul > li::before {
  content: counter(toc-h2) "." counter(toc-h3) ". ";
}

ul.table-of-contents > li > ul > li > ul > li::before {
  content: counter(toc-h2) "." counter(toc-h3) "." counter(toc-h4) ". ";
}

ul.table-of-contents > li > ul > li > ul > li > ul > li::before {
  content: counter(toc-h2) "." counter(toc-h3) "." counter(toc-h4) "."
    counter(toc-h5) ". ";
}

/* Disable ISO 2145 numbering within elements with disable_numbered_headings class */
.disable_numbered_headings h2::before,
.disable_numbered_headings h3::before,
.disable_numbered_headings h4::before,
.disable_numbered_headings h5::before {
  content: none !important;
}

/* Disable table of contents numbering for ISO 2145 within disable_numbered_headings */
.disable_numbered_headings ul.table-of-contents > li::before,
.disable_numbered_headings ul.table-of-contents > li > ul > li::before,
.disable_numbered_headings
  ul.table-of-contents
  > li
  > ul
  > li
  > ul
  > li::before,
.disable_numbered_headings
  ul.table-of-contents
  > li
  > ul
  > li
  > ul
  > li
  > ul
  > li::before {
  content: none !important;
}