Space between the columns
Possible Answers to Your Question:
Specifically which columns? Of a Content Widget?
The grid in Layers is responsive, which means the columns are a balanced percentage of the screen width. You can’t really change the spacing without adversely affecting that balance. You can add padding to each column to give the illusion of more space (condenses the content of each column). The following talks about how to do this using the Advanced button on the sidebar and dhow to find the selectors for the columns you want to change: