Is there a JSON command to increase Row Height of a SharePoint List?

I have a list where the comments in Classic SP make it extend too much and in SPO the user has to click into it to see all of it (don’t know how to get the ‘see more’, but don’t think they would click on it, so I need to increase the height/width of just that column/row. I know JSON, a little, so if someone knows the command?