..  include:: /Includes.rst.txt
properties.containerClassAttribute
----------------------------------

:aspect:`Option path`
    prototypes.<prototypeIdentifier>.formElementsDefinition.GridRow.properties.containerClassAttribute

:aspect:`Data type`
    string

:aspect:`Needed by`
    Frontend/ Backend (form editor)

:aspect:`Overwritable within form definition`
    Yes

:aspect:`form editor can write this property into the form definition (for prototype 'standard')`
    No

:aspect:`Mandatory`
    No

:aspect:`Default value (for prototype 'standard')`
    ..  code-block:: yaml
        :linenos:
        :emphasize-lines: 3

        GridRow:
          properties:
            containerClassAttribute: input
            elementClassAttribute: row
            elementErrorClassAttribute: error
            gridColumnClassAutoConfiguration:
              gridSize: 12
              viewPorts:
                xs:
                  classPattern: 'col-{@numbersOfColumnsToUse}'
                sm:
                  classPattern: 'col-sm-{@numbersOfColumnsToUse}'
                md:
                  classPattern: 'col-md-{@numbersOfColumnsToUse}'
                lg:
                  classPattern: 'col-lg-{@numbersOfColumnsToUse}'

..  :aspect:`Good to know`
    ToDo

:aspect:`Description`
    A CSS class which is typically wrapped around the form elements.
