Hi,
Just started using the responsive email designer and I just can't figure how to make th body centered with background of a different color either side like in the bumble example? My example is just white all the way across and I can't see where to change this. What am I missing?
Thanks
Mike

The body is just a series of rows.
When you add a row, if you add a full-width constrained row, it will automatically center the row and, therefore, the column and elements within it.

Each row can have a background color and contains a column.
Each column can have a different background color and contains elements.
Depending on the element, it may have its own background color as well.

Columns will fill the width of a row, but you can add styling to make it appear differently. What specific effect in the Bumble project are you trying to duplicate?