Today I had some issues on creating a table which used rowspan. The result in the calibre previewer did not show some borders, nor when viewing the epub with calibre. Only after a long time of trying and trying, it turned out that the resulting epub page was showing correct on my e-reader itself, but just not on the calibre (pre)viewer.
To test I used the following (test) html page:
The code above produced the following result in the calibre previewer (picture1), in which borders where missing (indicated by red in picture2). These missing borders are showing on my e-readers.
Is this a known anomaly of the calibre (pre)viewer?
To test I used the following (test) html page:
Spoiler:
The code above produced the following result in the calibre previewer (picture1), in which borders where missing (indicated by red in picture2). These missing borders are showing on my e-readers.
Is this a known anomaly of the calibre (pre)viewer?
![[PaleoEntomology • 2026] Icaroramus perisi • A Firefly Relative that Smelled...](http://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMZSY5sujLgS4W0hLrwP3gXEGbBufm075721BLGmRjXLTrFNRy9ifzFjWQEkp5yeEM6UMSz93etP8idZhDY1luqEd-kf4oj7whYT70jDlVj13xFFyfwl7rWW8kSp4-XCIF5z0VescEW9oMEdToo-_wMQHoJlbXOkgRvsXURHGngrcgyzILIjymGfXqdvE/w400-h244/Icaroramus_perisi-novataxa_2026-Li_Kundrata_Cai.jpg)
