It’s worth mentioning here that this works well with D3, and examples are provided on the page.

The author says it handles “almost all” of the D3 gallery, which makes sense because some of those have very fancy zoom behaviors on them. I’ve written a few D3 visualizations, and while I enjoy the flexibility of the framework, the pan and zoom behaviors have always been a little tricky to work with.

Being able to skip all that and instead write <svg easypz=‘{“applyTransformTo": "svg > *"}’> to get universal zoom is very helpful!