@roughpixels Thank you, thank you!
I took your ideas and modified them a bit by reusing the class name “my_pano”. Then I only have to apply one class. It works on all my devices/browsers. I hope it doesn’t violate any standards. See my test page.
figure.wp-block-image.my-pano {
overflow-x: auto;
display: block;
}
/* for panorama images */
.my-pano img {
max-width: initial;
height: 400px;
overflow-x: scroll;
overflow-y: hidden;
}