Sometimes it is necessary to format or position every field of a form. Without configuration TYPO3 outputs following:

<div class="csc-mailform-field"><label for="mailformname">name:</label> <span class="csc-mailform-label"><input type="text" name="name" id="mailformname" size="20" value="" /></span></div>

When using the following typoscript snippet the output is this:

<div class="csc-mailform-field feld-name"><label for="mailformname">name:</label> <span class="csc-mailform-label"><input type="text" name="name" id="mailformname" size="20" value="" /></span></div>

This snippet adds to the surrounding div tag a new CSS class that is generated in the form field-fieldname.

tt_content.mailform.20{
  commentWrap.cObject=COA
  commentWrap.cObject{
    20=TEXT
    20.value=field-{current:1}
    20.insertData=1
  }
  layout(
               <div class="csc-mailform-field ###COMMENT###">###LABEL### <span class="csc-mailform-label">###FIELD###</span></div>
  )
}