Invisible div

The concept of an invisible scrollable div took me about 2 days to get my head around . . . and I still had to ask Claude to help me understand it — a tape measure off screen that lets the JavaScript know where you are in the SVG so it knows where to position everything in the frame . . . that's about all I got.

But honestly what blew my mind wasn't the concept itself (and that's pretty mind blowing) it was the fact that someone actually came up with it! I mean who is sitting around with a brain capable of coming up with these things???

Just makes me realise how big the jump is between where I am at and where they are . . . sobering thought, but apparently doable.

Personally I would have just made a very long SVG . . . but glad they found a better way for me to learn from . . .