I have been asked by a client if a popup lightbox is possible within an email?
With the knowledge i have i dont think this is possible but i thought i would ask the forum to know for sure :)
As far as I'm aware, this is not possible. However, I have seen some info on Campaign Monitor for showing and hiding content, concertina style on mobile - http://www.campaignmonitor.com/guides/mobile/responsive/
Thanks for the replies, yeah i thought that was the case but thanks for the content link, i will grab a cuppa and have a read :)