<!DOCTYPE html> <link rel="stylesheet" href="test-common.css"> <style type="text/css"> .invalid { list-style-type: lower-greek; list-style-type: symbols(a b c); list-style-type: symbols(alphabetic a b c); list-style-type: symbols(numeric 0 1 2); list-style-type: symbols(additive 'a' 'b'); list-style-type: symbols(fixed); list-style-type: symbols(alphabetic 'a'); list-style-type: symbols(numeric '0'); } </style> <ol start="-2" class="invalid"> <li><li><li><li><li> <li><li><li><li><li> </ol>