CSS counters behavior test cases:
1. 1. (1) 2. 1. (1-1) 3. 2. (1-2) 4. 2. (2) 5. 1. (2-1) 6. 2. (2-2)
1. 1. (1) 2. 1-1. (1-1) 3. 1-2. (1-2) 4. 2. (2) 5. 2-1. (2-1) 6. 2-2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2.3. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2.3. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 2. 1. (1-1) 3. 2. (1-2) 4. 2. (2) 5. 1. (2-1) 6. 2. (2-2)
1. 1. (1) 2. 1-1. (1-1) 3. 1-2. (1-2) 4. 2. (2) 5. 2-1. (2-1) 6. 2-2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2.3. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2.3. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2. 2. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 1. 1-1. (1-1) 2. 1-2. (1-2) 2. 2. (2) 1. 2-1. (2-1) 2. 2-2. (2-2)
1. 1. (1) 1. 2. (1-1) 2. 3. (1-2) 2. 4. (2) 1. 5. (2-1) 2. 6. (2-2)
1. 1. (1) 1. 2. (1-1) 2. 3. (1-2) 2. 4. (2) 1. 5. (2-1) 2. 6. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2. 2. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 1. 1-1. (1-1) 2. 1-2. (1-2) 2. 2. (2) 1. 2-1. (2-1) 2. 2-2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2.3. (2) 1. 1. (2-1) 2. 2. (2-2)
1. 1. (1) 1. 1. (1-1) 2. 2. (1-2) 2.3. (2) 1. 1. (2-1) 2. 2. (2-2)
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-3. (h2) 2-1 2-4. (h2) 2-2 2-4-2. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-1. (h2) 2-1 2-2. (h2) 2-2 2-2-1. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-1. (h2) 2-1 2-2. (h2) 2-2 2-2-1. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-1. (h2) 2-1 2-2. (h2) 2-2 2-2-1. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-1. (h2) 2-1 2-2. (h2) 2-2 2-2-1. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-3. (h2) 2-1 2-4. (h2) 2-2 2-4-2. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-1. (h2) 2-1 2-2. (h2) 2-2 2-2-1. (h3) 2-2-1
1. (h1) 1 1-1. (h2) 1-1 1-2. (h2) 1-2 1-2-1. (h3) 1-2-1 2. (h1) 2 2-1. (h2) 2-1 2-2. (h2) 2-2 2-2-1. (h3) 2-2-1
1. 1. (1) 2. 2. (2) 3. 1. (2-1) 4. 3. (3?) 5. 4. (4?)
1. 1. (1) 2. 2. (2) 3. 2-1. (2-1) 4. 3. (3?) 5. 4. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 3.2. (3?) 4.3. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 3.2. (3?) 4.3. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 2. 3. (3?) 3. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 2. 3. (3?) 3. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) 3. 1. (2-1) 4. 2. (3?) 5. 3. (4?)
1. 1. (1) 2. 2. (2) 3. 2-1. (2-1) 4. 2-2. (3?) 5. 2-3. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 2.2. (3?) 3.3. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 2.2. (3?) 3.3. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 2. 3. (3?) 3. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 2. 3. (3?) 3. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 2. 3. (3?) 3. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 2. 3. (3?) 3. 4. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 3. 2. (3?) 4. 3. (4?)
1. 1. (1) 2. 2. (2) 1. 2-1. (2-1) 3. 2-2. (3?) 4. 2-3. (4?)
1. 1. (1) 2. 2. (2) 1. 3. (2-1) 3.4. (3?) 4.5. (4?)
1. 1. (1) 2. 2. (2) 1. 3. (2-1) 3.4. (3?) 4.5. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 3. 2. (3?) 4. 3. (4?)
1. 1. (1) 2. 2. (2) 1. 2-1. (2-1) 3. 2-2. (3?) 4. 2-3. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 3.2. (3?) 4.3. (4?)
1. 1. (1) 2. 2. (2) 1. 1. (2-1) 3.2. (3?) 4.3. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)
1. 1. (1) 2. 2. (2) * (2-1) 3. 3. (3?) 4. 4. (4?)