The image shows the Layout panel for the top HBox container after the default values of four properties have been modified. The Vgrow and Margin properties are circled at the top. The Vgrow value is set to NEVER and the Margin values are set to 20, 15, 15, and 10. The Pref Width and PrefHeight size properties are circled in the bottom half of the image. The values for both properties are set to USE_COMPUTED_SIZE.