Web2 [WebIUControl] how is the style property used?

Each webuicontrol has a style property.
is it my job to send each property inside the webstyle to the javascript and browser part
or is it handled by the xojo web framework ?

For the SDK you should be creating a css style sheet and returning the url to it in the appropriate event. We have included more details in the 2020r2 prerelease about this

in the websdk documentation or examples ?