That's really cool! However, I can drag the SVG's viewbox around; something I wouldn't expect to be able to do.
EDIT: It makes sense when you zoom in (like you would with 7 bits), but if I'm zoomed out all the way, I wouldn't' expect to be able to pan around. I'd expect it to prevent panning past the edge.
EDIT: It makes sense when you zoom in (like you would with 7 bits), but if I'm zoomed out all the way, I wouldn't' expect to be able to pan around. I'd expect it to prevent panning past the edge.