Text and button aligned with a two-column form

forms:
    contact_form:
        name: contact
        action: /home
        classes: contact__form__wrapper js-form-contact
        fields:

            columns:
                type: columns

                fields:

                        column1:
                            type: column
                            fields:

                                - name: name
                                  placeholder: Name
                                  type: text
                                  validate:
                                    required: true
                                  classes: contact__form__input
                                - name: email
                                  placeholder: Email
                                  type: email
                                  validate:
                                    required: true
                                  classes: contact__form__input

                        column2:
                            type: column
                            fields:

                                - name: message
                                  placeholder: Message
                                  type: textarea
                                  size: long
                                  validate:
                                    required: true
                                  classes: contact__form__input--lg

            text:
                type: spacer
                text: All the fields are required

        buttons:
            - type: submit
              value: Send message
              classes: button_dark