Screen layout properties

Some layout properties might not be available if the harness is used as an app view, main area, inner harness, or page view.

Unit	Specify the unit of measurement for the width of the layout: percentage ( `%` ) or pixels ( `px` ).
Alignment	Specify the overall alignment of the screen layout on the screen.
Width	Specify the width of the screen layout in pixels.
Screen layout format	Select one of the following screen layout formats: `Content Only` `Header` `Footer, Header Left` `Header Right` `Header Left Right` `Header Footer, Header Footer Left` `Header Footer Right` `Header Footer Left Right` `Left`
Layout mode	Optimized code – Recommended option. Select optimized code to use flexbox-based layout in your form. A flexbox layout alters the width, height, and order of its contents to best fill the available space. The child layouts contained within this type of layout can be laid out in vertically or horizontally. You can expand them to fill the available space or shrink to avoid overflowing the parent layout. You can also manipulate horizontal and vertical alignment of the child layouts. If you need to build layouts in two dimensions, use nesting layouts (horizontal inside vertical or vertical inside horizontal). Legacy code – Select legacy code to use float-based layout in your form. This type of layout uses the inline block when setting several layouts side-by-side inline. The inline block is compatible with pre-flexbox generation of dynamic layouts. Converting this layout to the optimized layout mode might require additional changes if you use custom CSS for styling the dynamic layout.
Display advanced presentation options	Inline style (not for production use) – You can use this field to define an inline style by entering cascading style sheet (CSS) code. However, entering an inline style results in a guardrail warning. For maintainability and reuse, the recommended approach is to use a custom CSS class. Custom CSS class – Instead of creating a new custom format in the skin, you can adjust elements in a layout by applying CSS helper classes. For example, you can use a CSS helper class to double the standard right margin for an element. Click the Open class editor icon to see a list of available helpers. You can enter several helper classes, separated by a space. For more information, see Helper classes . Alternatively, you can enter the name of a custom style.