@PeterShaw i experience a similar problem. the widgets i'm trying to implement are the ones from elfsight. i understand html embeds are not possible, so I'm trying to use iframes. I am able to set it to 100% width via the attributes, but the height is not responsive at all and only shows a fraction of the height (with attribute height set to 100%). i have left size and width blank in the style panel and so is the the parent div.