Scratch Ad with link behind

[jam (Jan Schwieger)]

Hi, i found here a classic scratch ad solution...

Scratch and reveal JS effect

When "zoom contents" is checked, this relies on using the CSS transform:scale on the group which scales everything inside like a bitmap. I suspect that the scratchpad code isn't taking this into account for its mouse location handling. If you don't mind turning the zoom contents setting, you can then turn on flexible layout for the children elements individually. Basically just turn on all pins/sizing for the inner elements and then they'll still adjust in size, but do so using their width/hei…

My question: if you rub off the top picture and the bottom picture shows up - is it then possible to make a clickable area for a link?

... or a button shows up if you rub off fe. 80%?