VBox (split)

Organizes its children vertically, in order from top to bottom. If it is taller than the sum of its children's heights, the excess is distributed equally among all stretchable children, as far as they will stretch. If all stretchability is exceeded, the excess will be given to the last child. If it is shorter than the sum of its children's heights, it clips on the bottom, perhaps making some children entirely invisible. All children have width equal to the width of the VBox. Section [sec:language-sizing] explains the layout model in detail.

Shape
The height is the sum of its children's heights; the width is the maximum of the children's widths, but is stretchable only if all of them are.
See Also
HBox