Individual List:
1. In header, the tag begins with h1, but ends with /h2 instead of /h1
2. Head begins with /head, instead of head
3. body begins inside of head, it should begin after /head
4. Tag b ends with b instead of /b
5. b tag should end inside of h1 tag, not outside of it
6. a tag should end inside of p tag, not outside
7. br tag is written like br}
8. p is paired with /h3 instead of /p
9. p tag should end inside of footer, not outside
10. body should end inside of html, not outside
Group List:
1. Line 1 html should be - doctype not declared
2. Line 26 /h2 does not have start tag
3. Line 27. h1 does not have end tag
4. Line 27 /header tag not paired
5. Line 34 /head does not have a start tag
6. Line 37 /I does not have a start tag
7. Line 37 /I does not have a start tag (again)
8. Line 37 I does not have an end tag
9. Line 38 em does not have an end tag
10. Line 42 b does not have an end tag
11. Line 56 /h1 must be outside /b tag
12. Line 57 /b must be inside h1 tag
13. Line 62 a tagged incorrectly
14. Line 81 br Curly bracket not used in HTML
15. Line 108 /h3 missing start tag
16. Line 141 p on line 106 missing end tag
17. Line 148 /p should be inside footer tag
18. Line 149 /footer should be outside /p tag
19. Line 152 html should be outside body
20. Line 154 body should be inside /html
21. Line 118 2 is not part of the a tag