3 Rules from the stylesheet:
5 #a:nth-child(1n-1) { color: green; }
6 #b:nth-child(1n-10) { color: green; }
7 #g:nth-child(-1n-1) { color: green; }
8 #h:nth-child(-1n-10) { color: green; }
9 #n:nth-child(-1n-1) { color: green; }
10 #o:nth-child(-1n+13) { color: green; }
13 #a:nth-child(1n-1) { color: green; }
14 #b:nth-child(1n-10) { color: green; }
15 #g:nth-child(-1n-1) { color: green; }
16 #h:nth-child(-1n-10) { color: green; }
17 #n:nth-child(-1n-1) { color: green; }
18 #o:nth-child(-1n+13) { color: green; }