I found a way to do this. You have to add field style to the particular filed you want to be smaller. I had an integer field that only has 2 characters in it and felt all of that empty space was annoying - I added a field style to my field (width:2px) and I made the value be '1'. Since I have a sequential list of integers, if one of them matches my value '1', then the rest of the records follow suit and the it changes their width to be way smaller.

Hope this helps.