Sure, look up "single div" on codepen and you'll find tons (http://codepen.io/search?q=%22single+div%22&limit=all&order=...). I don't think this website claims any new technique, It just shows off a collection of things made using it...

Not true - none of those are a single div

None of these devices are one div... http://i.imgur.com/IwhB56A.png

MalwareBytes doesn't like your link.

Odd, no problem for me.

There's a lot of ads on the page , so maybe that's why.

Here's another one

http://marvelapp.github.io/devices.css/

Cool, thanks for the new link.

You're probably right though. It's the ad-heavy pages that always seem to cause problems.