// my initial implementation
flexBox {
    label("Item 1") {
        setAlignment(Align.center)
    }.flex {
        setSize(100f)
    }
    label("Item 2") {
        setAlignment(Align.center)
    }.flex {
        setWidth(100f).setHeight(100f)
        positionType = YogaPositionType.ABSOLUTE
        setPosition(YogaEdge.LEFT, 10f)
    }
}
or 
flexBox {
    label("Item 1") {
        setAlignment(Align.center)
    }.flex(size = 100f)
    label("Item 2") {
        setAlignment(Align.center)
    }.flex(width = 100f, height = 100f, positionType  = YogaPositionType.ABSOLUTE, positionLeft = 10f)
}