#corps h1, main h1 {counter-reset: h2 h3 h4 h5}
#corps h2, main h2 {counter-reset: h3 h4 h5}
#corps h3, main h3 {counter-reset: h4 h5}
#corps h4, main h4 {counter-reset: h5}
#corps section section.section_h3, main section section.section_h3 {counter-reset: h3 h4 h5}

#corps h2:before, main h2:before {counter-increment: h2; content: counter(h2)". "}
#corps h3:before, main h3:before {counter-increment: h3; content: counter(h2)"." counter(h3)". "}
#corps h4:before, main h4:before {counter-increment: h4; content: counter(h2)"." counter(h3)"." counter(h4)". "}
#corps h5:before, main h5:before {counter-increment: h5; content: counter(h2)"." counter(h3)"." counter(h4)"." counter(h5)". "}