1.4.12 Text Spacing - Check #503 - composite check

503 - examples
- Fail 1
- Fail 2
- Fail 3
- Fail 4
- Pass 1
- Pass 2
- Pass 3
- Pass 4
- Pass 5
- Pass 6
- Inapplicable 1
- Inapplicable 2
- Inapplicable 3
- Inapplicable 4
- Inapplicable 5
- Inapplicable 6
- Inapplicable 7
- Inapplicable 8
- Inapplicable 9
- Shadow DOM