Core block patterns doesn't show correctly

[Mil1]

Hello,

Before, thank you for your Axio !

I activate the Core block patterns and the media stylesheet with:
iframe { max-width: 100%; }

It's broke the preview in sidebar. I add this in editor-gutenberg :
.block-editor__container iframe { max-width: inherit; }

Thanks

[TeemuSuoranta]

Hi!

Sorry to keep you waiting. I'd probably add "front-end" class to body and scope that iframe tweak to apply only on front-end. Root cause is of course that we are not super strict on which styles get applied to front-end and which to editor. In theory this sounds bad but in practice it is most of the time very useful and reduces duplication work and human errors.