Test parsing of CSS nth-child tokens.

SUCCESS

Rules from the stylesheet:

#a { color: green; }
#b { color: green; }
#e { color: green; }
#g { color: green; }
#i { color: green; }
Expected result:

#a { color: green; }
#b { color: green; }
#e { color: green; }
#g { color: green; }
#i { color: green; }