I am now making up my first pages with Sparkle and have found an annoying display problem when zooming in Safari. Go to this page and scroll down to the box near the bottom
When zooming up one level, the gap between the text and the box becomes too large:
When zooming to the second level, the text overlaps the bottom of the frame and is lost:
The behaviour changes again with subsequent zoom levels. I have reproduced this on multiple devices under Catalina and Mojave.
I see that something similar happens on your own site, although it’s not as noticeable. These examples are from the Page Setup page on the Sparkle site at different levels of zoom note the difference in the lines above the image at each zoom level:
Firefox by contrast is rock solid. I don’t understand the technicalities but I guess that there is a problem with the way Safari scales fonts. Any chance of a fix?