Res Rickli

Oh – thank you very much, I found it with your help. For some reason it was initially grayed out and therefore practically invisible.

The problem is resolved already; I received the answer from the author of Pixgridder within 1 hour!:

The theme has got in its stylesheet:

.column a {
  margin-bottom: 10px;
  display: block;
}

That means any link in any element with class column will have that style.
You should override that by adding somewhere:

.column[data-col] a {
  margin-bottom: 0;
  display: inline;
}

Appending this to style.css resolves the problem.

GREAT! That works perfectly, thank you very much!
Res ??