Hi, thank you very much but it doesn't do exactly what I intended. 🙂 The code reduce padding on both images and therefore positions them outside of the visible edges. What I intended was to reduce the right padding of the left image and the left padding of the right image or, even better, to reduce the default width of the column gutter. I want to achieve that the outer margins and the middle one would be of the same width (0.8vw as set in Spacing in Site Styles).
Thank you again for your help!