Thread:Project:Support desk/How to select nth-child of grandparent element instead of direct parent element (2)

Is it possible to select the nth-child of its grandparent element (2nd parent), versus it's parent element? I researched and apparently there are no CSS parent selectors.

My source code is located at http://dev.brickimedia.org/wiki/User:Codyn329/Sandbox/4

I want to do this so I can highlight the current day out of all the days on the calendar. However, since the way I nested it..

When I select the parent of, it goes to   instead of.

The main CSS block I'm trying to use to do this is here (Note - I'm using a magic word in a parser function (#css from Extension:CSS) so direct input of  in the parentheses should be OK I assume):