Hi opajaap,
Thank you for the code. It worked, but on smaller screens it now falls out a little bit of the main contentbox on the left instead of the right. But that is merely a small cosmetic issue.
We still have the problem of the alignment of the thumbnails when there are to few thumbnails to fill a row. We want them to be centered horizontally.
Can you please take a look at the following link to see if you can fix it?
https://www.arachnophoto.com/1-2/
We have another question: In what file and what place can we put a code to get a border with mouseover effect around the thumbnails?
Thank you in advance for your help.
Marnix en Marielle