Scale drag source and drop target equally
I'm making a drag and drop interaction where I want the learner to drag cells (that is, shapes with text in them) into a blank cell in a spreadsheet.
My problem is that I can't get my drag sources and drop targets to scale at the same rate. So when I test it in any resolution other than desktop, the drop sources doesn't fit the drop targets.
I've tried making sources as both shapes and SVG images, and I've tried keeping them in both static and non-static fluid boxes. I've also tried locking the size and position for both targets and sources.
For the drop target, I first tried to make an SVG of the entire table and then placing shapes for the drop targets (putting it all in a static fluid box). I also tried making each row a fluid box, with a text caption and two shapes.
Does anyone have a suggestion for how to design this? Maybe there is a clever solution that I'm not seeing. ![]()
Below is a sketch of is what I want it to look like. The green drag sources should fit into the white areas in the blue rows.

