Hi TJ, I saw this because of a google alert -
I think this should fix itself if you reload the page; it is occurring because the widget is not adapting to the page being re-sized. Can you tell me if that works? The test loads fine on my iphone. But to prevent this in the future, we are going to add an auto-resize to the widget if the DOM size changes.
Thanks for using Bookshop widgets!
Andy Hunter
CEO, Bookshop.org