Hi Rui,
That worked perfectly Rui. Many thanks!
Now I have one last question: Why does the responsive css for the area stop around a min width of 768? Above that size you have a width of 25% for each thumb and float set to left. Below it you go to 50% first, but with float disabled. So 4 50% thumbs show up underneath each other. Around 479 you go to 100%.
I would have expected 2 thumbs next to each other in the intermediate step. It can simply be done by turning the float on for that step.
But maybe there is a reason for it that I don not see!?
Cheers,
Johan