The style attribute has a getter, which confuses zest.
fgnass/domino#59 has a full bug report (domino uses zest) and fgnass/domino@9d9e2e1 has the needed patch.
I'd make a PR for this repo, but it's been over two years since I submitted my last PR (#17), so I don't want to waste effort if the PR is just going to be ignored.