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

:aspect:`Option path`
    prototypes.<prototypeIdentifier>.formElementsDefinition.Date.properties.elementClassAttribute

: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: 4

        Date:
          properties:
            containerClassAttribute: input
            elementClassAttribute:
            elementErrorClassAttribute: error
            displayFormat: d.m.Y
            fluidAdditionalAttributes:
              pattern: '([0-9]{4})-(0[1-9]|1[012])-(0[1-9]|1[0-9]|2[0-9]|3[01])'

..  :aspect:`Good to know`
    ToDo

:aspect:`Description`
    A CSS class written to the form element.
