1. css property: list-style-type: cjk-decimal

2. css property: list-style-type: decimal

3. css property: list-style-type: decimal-leading-zero

4. css property: list-style-type: lower-hexadecimal

5. css property: list-style-type: upper-hexadecimal

6. types: `<color>`: rgb hexadecimal notation (`#rrggbb`, `#rgb`, …)

7. types: `<color>`: rgb hexadecimal notation (`#rrggbb`, `#rgb`, …): rgba hexadecimal notation (`#rrggbbaa`, `#rgba`)

8. javascript built-in: intl: numberformat: format: `number` param string value is decimal (not `number`)

9. javascript built-in: parseint: parses leading-zero strings as decimal, not octal

10. grammar: decimal numeric literals (`1234567890`)

11. grammar: hexadecimal escape sequences (`'\xa9'`)

12. grammar: hexadecimal numeric literals (`0xaf`)