form.custom.widget.name_on_card['_class'] += ' my-class'

or

form.element(_name='name_on_card')['_class'] += ' my-class'

Anthony

On Tuesday, January 31, 2012 7:46:44 AM UTC-5, David J wrote:
>
> I have
>
> {{=form.custom.widget.name_on_card }}
>
> which generates
>
> <input type="text" value="Person name" name="name_on_card" 
> id="no_table_name_on_card" class="string">
>
>
> How do I add an additional class to the rendered output?
>
> ie: big
>
> <input type="text" value="Person name" name="name_on_card" 
> id="no_table_name_on_card" class="string big">
>
> Thanks.
>
>

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