How do I use this generator? (how do I stop it?)

psuedofolio:

You must be looking at one of the much older randraw generators which relied on the old tumblr game of dragging a randomized gif to the side of the screen to see what it stops on.

Here’s a much more up to date version. http://alexanderlozada.com/resources/psuedofolio/

I do have plans on updating this thing and making it even cooler, but that’s in the future still.