[CSS2] Adjust some formatting in new CSS 2.2 version #5280
Description
Section 4.1.3
Example 17, needs newline between paragraphs
Section 5.8.1, Example 67, the code paragraph is not highlighted
example 71 is nested inside example 70
Section 5.8.2
Example 72 nests many others
Section 5.9
Should Example 79 be divided in two ?
Invalid Examples, needs some space between "Example" and numbering
Section 4.1.2 Example15,
Section 4.1.5 Example18, Example19
others
Appendix E, section Painting order, The diagram is a little misaligned.