How make a Webview fits Safe Area on all devices

Hi,

I have created a Webview and I want it to fit the Safe Area for all devices (iPhone and iPad). I tried, I think, all options in the View panel (Show, Arrange, Autoresizing, Layout Margins...), but I can't find a configuration that resizes and fits my Webview to Safe Area for all devices, with or without Superview and with different screen sizes.

Thanks for your help.