Numbering section headings

To number section headings, you can add the following declarations to the page MediaWiki:Common.css:

article {counter-reset: h2counter;}
article  h1 {counter-reset: h2counter;}
article  h2 {counter-reset: h3counter;}
article #toc h2#mw-toc-heading {counter-reset: h2counter 0}
article  h3  {counter-reset: h4counter;}
article  h4  {counter-reset: h5counter;}
article  h5 {counter-reset: h6counter;}
article  h2:before, article #mw-content-text h2:before {
        content: counter(h2counter) ".\0000a0\0000a0";
        counter-increment: h2counter;
      
    }
article #toc h2#mw-toc-heading:before {content:""}
article  h3:before {
        content: counter(h2counter) "." counter(h3counter) ".\0000a0\0000a0";
        counter-increment: h3counter;

    }
article  h4:before {
        content: counter(h2counter) "." counter(h3counter) "." counter(h4counter) ".\0000a0\0000a0";
        counter-increment: h4counter;
       
    }
article  h5:before {
        content: counter(h2counter) "." counter(h3counter) "." counter(h4counter)"."counter(h5counter) ".\0000a0\0000a0";
        counter-increment: h5counter;
       
    }
article  h6:before {
        content: counter(h2counter) "." counter(h3counter) "." counter(h4counter)"."counter(h5counter)"." counter(h6counter) ".\0000a0\0000a0";
        counter-increment: h6counter;
       
    }

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