I found the box-shadow styles are not applied to the div element in panel UI. CSS support document doesn’t include this property either.
So does this mean we can not use shadow styles in plugin UI? or if there is another way to do this…
UXP does not yet support box-shadow (or any shadow-generating CSS styles). We’re working on enhancing the underlying rendering images in our apps to make it easier to add support for more styles in the future, but that means that there’s no support for this style planned in 2021.
Thank you for the response.
(ToT sad to hear that…