How to style each table cell in a column via CSS?

Answer 1

2015 answer, and based on the first-child answer but MUCH cleaner.

https://developer.mozilla.org/en-US/docs/Web/CSS/%3Anth-child

td:nth-child(1) { /* first column */ }
td:nth-child(2) { /* second column */ }
td:nth-child(3) { /* third column */ }

Super clean code