Hidden field in the web portal product details

Hi everyone,

I've configured the web portal to show the description of an item when you are on the catalogue. I've added the column and inserted the query to get the data from the product but it has a strange behavior, the field is not shown when the browser window has the dimention of a PC screen but when i see that page with a mobile-like window it appears.

Is there a configuration to avoid this behavior?

Thanks,

Simone