custom css not working in table

Hi Tobias,

The custom css that I wrote in the pluginoptions is not visible in one of my tables (after I upgraded to WP 4.2.2 and added some images to the table).
The other tables with the same css still seem to be fine.

Here’s the page with the problem: http://www.heelhulpje.nl/?page_id=4319
Here’s a ‘sibling’, apparently without the problem: http://www.heelhulpje.nl/?page_id=3065

What can cause the code from working?

Thank you!
Nathalie

https://ww.wp.xz.cn/plugins/tablepress/