Button set width

Is it possible to restrict the button set width to less than 100% of the page width? I have one button named “Detailed Description” which I’d like to take up less white space on the page!

The “Detailed Description” button is a pop up showing the full contents of the “Description” field. The content of this field can be fairly long, so we chose to use a pop up to save on page space! If there are any ideas on what else we could use, would be greatly appreciated!

I have had success putting the button set in a responsive grid. You can then set the grid division to a fixed width.