The puzzling CSS :nth-child() Selector has a good example at w3schools:

https://www.w3schools.com/cssref/tryit.asp?filename=trycss3_nth-child

So it appears that the CSS :nth-child() Selector can be used in the <style> ... </style> section of the html file.

So hundreds of odd or even statements could be eliminated from the API html ???

- Brian