Drop zone size in the Drag the words

Hi

As I understand it, the drop zones in the Drag the words are as long as the longest droppable word. This is quite inconvenient in a sentence like:
He eats cucumbers every day.

The drop zones will then take up alot of space. Is there a way to make the drop zones smaller by default and the resize to the word that is dropped into them?

Hope it makes sense. :)

TIA