Hi,
There were some changes in CSS made that affected the appearance of the published storymap especially when embedded as an iframe. Consequently, one of the elements that became larger than 100% affected the overall page - (data-blockid="n-ys80vM" id="n-ys80vM", see attachment 01)
See the example here: https://storymaps.arcgis.com/stories/b8945044bcac4fd895effb90b0284226 (horizontal scroll bellow).
Could you please change the overflow here (see attachment 02)? That should fix the problem.
We would appreciate your help as it affected most of the stories we have created.
Thank you!
Taras