Something

      
orcoinvoices_macros (

     <table class="vertical listing invoiceDetailsTable visualNoPrint" width="100%">
            <tr>
                <th class="nosort alignRight" i18n:translate="orcoinvoices_label_item_description">Description</th>
                <td colspan="5">
                    <div class="field" tal:define="error errors/description_field|nothing"
                        tal:attributes="class python:test(error, 'field error', 'field')">
                        <div tal:content="error">Validation error output</div>
                     
   <input name="description_field" type="text" size="70" maxlength="70" tal:attributes="valuerequest/description_field|nothing"/>
----------------------------
                    </div>
                </td>
            </tr>

.....
                <td colspan="5">
                    <div class="field" tal:define="error errors/additional_notes|nothing"
                        tal:attributes="class python:test(error, 'field error', 'field')">
                        <div tal:content="error">Validation error output</div>
                        <input type="text" name="additional_notes" size="70" maxlength="70" tal:attributes="value request/additional_notes|nothing"/>
                    </div>
                </td>