I was hoping to create a pop-up that would appear when someone first visits my site. The point would be to collect their email address so I can send them some free content/newsletter, etc. I searched for how to create one and I found results for a Gateway stack and an InfoBar stack. Neither of these is a true pop-up, though.
My question is twofold: are true pop-ups not in fashion anymore? And regardless, what’s the best way to create one?