删除文本字段上的额外空间

Question

有没有办法删除黑莓10中每个文本字段中的多余空格？我不知道如果它是bb10的默认值，但是在textfields下面总有至少10dp的额外空间

Container {
                leftPadding: 70
                rightPadding: 70
                topPadding: 60

                Container {
                    verticalAlignment: VerticalAlignment.Center
                    horizontalAlignment: HorizontalAlignment.Center
                    layout: StackLayout {}

                    TextField {
                        id: tfFirstName
                        input.submitKey: SubmitKey.Next
                        hintText: qsTr("first name")
                        inputMode: TextFieldInputMode.Text
                    }

                    TextField {
                        id: tfLastName
                        input.submitKey: SubmitKey.Next
                        inputMode: TextFieldInputMode.Text
                        hintText: qsTr("last name")
                    }