This may be a "stupid" question, but I'm learning HTML as a whole, not just Constant Contact. I can't seem to find information on which HTML version Constant Contact uses despite looking it up?   I assume it would be one of the most recent versions, so is it HTML 4 or HTML 5? (If I am somehow altogether wrong/confused and this question doesn't make sense to ask, please feel free to correct me if possible.) Thank you for your help! ... View more