FlexboxLayout
{
    anchors.fill: parent

    direction: FlexboxLayout.Column

    alignItems: FlexboxLayout.AlignCenter

    alignContent: FlexboxLayout.AlignCenter

    Rectangle
    {
        Layout.preferredHeight: 100
        Layout.preferredWidth: 100

        color: "red"
    }

    Rectangle
    {
        Layout.fillHeight: true
        Layout.preferredWidth: 100

        color: "green"

        FlexboxLayout.alignSelf: FlexboxLayout.AlignEnd
    }
}