Summary: X-link: https://github.com/facebook/react-native/pull/46428 Pull Request resolved: https://github.com/facebook/yoga/pull/1696 We do not validate the aspect ratio to ensure it is non zero and non inf in a lot of places. Per the spec, these values should act like auto. There is no auto keyword, but it is the default so I just set the style to a default FloatOptional in this case Changelog: [Internal] Reviewed By: NickGerleman Differential Revision: D62473161 fbshipit-source-id: 6857de819538a7a87ce0a652e99f5a49992921ae