When editing your newsletter design's layout, each container comes with its own fully customizable group of row and slot settings. One of the customization options contained in the settings is the Container Border Radius.
To edit the Container Border Radius:
- In the editing area, hover your mouse over a container to display the Actions menu.
- Click Settings to display the Row settings in the editor's right pane.
- In Border Radius, enter the border radius or use the up and down arrows to edit the radius from 0 (rectangle) to 2000 (circle). Adjusting the border radius basically changes the roundness of your container.