Change layout of Portfolio grid

Is it possible to change the layout of the portfolio grid from 4 columns to 3 allowing for a little larger images and more spacing around them? I have been playing with the CSS as I find using the inspect element tool but whatever I do change isn’t giving the desired results.
thanks.

Can’t do much with the inspect tool because the items positions are set with JS. Just write your CSS and refresh your page to see the changes. And you’ll need to modify the image size also, the current one is probably too small for 3 columns.

Hi, thanks for the info.
Are you able to help with the CSS? I am getting overlap rather than 3 columns.
Thanks.

You basically only need to change the width to something like this: .portfolio-item { width: 33.33%; }