Mistake at the Module Type "Page Builder CK"?

Hello,
I created a module of type "Page Builder CK". Everything fine.
But if I specify a class under the CSS class header, then it is not adopted.
Since the website is already up and running, I don't want to post the URL here. If necessary, I'll be happy to send a PM.
Greetings
Sven
 

Hi
are you talking about the "header class" option in the advanced tab ?
this is not managed by Page Builder CK, but by your template. Does this work for other modules ? if yes, are you using the same module style as others ?
CEd

Hello CEd,
please excuse the late reply, even though you took up the topic so quickly. I have now found the error. It was my mistake! I confused "header class" with "modul class".
My problem was that with the Cassiopeia template and the module style "card" I had no idea how to describe the module itself with an additional class. Unfortunately I need this module style "card" so that the 3 modules next to each other appear the same size in the template. Of course I could have simply designed 3 DIVs next to each other in Page Builder CK, but the content of one module was not created with Page Builder CK.
My solution was to create my own module style. Works well.
My problem can be marked as solved. Thank you
Sven