Is that possible?? I also want this.
These are available in JavaFX 8, but not before.
2.x does not have support for this.
In 8.0, you can specify -fx-min-width, -fx-pref-width, -fx-max-width, -fx-min-height, -fx-pref-height, and -fx-max-height. for Region and any node that extends from Region.