Same as Sandbox.UI.PositionMode.Relative, but the elements size does not affect other elements at all.

A root-viewport overlay that remains a logical child. Insets and percentages use the viewport, ignoring ancestor scrolling, transforms and clipping. Unset insets start at the viewport's top-left (not the CSS static position). Logical visibility and opacity still apply.

Enables top, right, bottom, left, and z-index to offset the element from its would-be position with Sandbox.UI.PositionMode.Static.

Default, the top, right, bottom, left, and z-index properties have no effect.