UIKit row for columns and column components

The Row for columns and column components combine to provide a very flexible system for creating one-off column based layouts and grids.

Key information about these components:

Row for columns component

Full width container element - Provides a fluid width container for full width page section with a background color or background image.
Boxed width inner container - Provides a container that can be set to boxed width to contain the content within a page section to the responsive grid's width.
Row for columns element - Required for the columns.

Width of content area - Sets a maximum width to the content area. Boxed width restrains the content to a maximum set width. Full width allows the content to expand to fill the width available.
Column alignment - If the columns' combined width is set to less than full width, they can be aligned horizontally to the left, center, right, or distributed evenly.
Space between columns - Sets the columns to have a space (gutter) between them or no space between them.
Padding top and bottom - Sets a space above or below the content within the layout. This setting is needed when the layout is used at the top level as a section. It should be set to None if nesting this layout within another layout
Background color - Set the background color of the row.
Background image - Set a background image for the row.
Alternative image for phone - Provides an alternative image to show on phones.

Column element - This provides the column. It has been set to display:flex and flex-direction:column. These CSS properties should not be changed as they allow content placed within the column to fill the column height.
Drop zone - The drop zone for content to be placed within.

Desktop width - Sets the width of the column when it's displayed on a device at desktop width.
Tablet width - Sets the width of the column when it's displayed on a device at tablet width.
Phone width - Sets the width of the column when it's displayed on a device at phone width.