Layout Container Padding
Container Padding can be added to individual Layout Elements, either to the entire Layout (on all sides at once), or to each side of the Layout individually (top, bottom, right, left).
To start, click on the dotted line surrounding a Layout on your Newsletter to select it. From the menu that appears on the left, type your expected pixel spacing to apply a change to the entire Layout, or use the up and down arrows that appear.
Toggle for more options to apply padding to the individual sides of your Layout in the same way.