<!DOCTYPE html> <link rel="stylesheet" href="test-common.css"> <style type="text/css"> @counter-style a { system: fixed; symbols: \25F0 \25F1 \25F2 \25F3; suffix: ':'; } @counter-style b { system: fixed -1; symbols: \25F4 \25F5 \25F6 \25F7; suffix: ':'; } </style> <ol start="-2" style="list-style-type: a"> <li><li><li><li><li> <li><li><li><li><li> </ol> <ol start="-2" style="list-style-type: b"> <li><li><li><li><li> <li><li><li><li><li> </ol>