Building web pages with XHTML 1.1

If your form is large or complex, you may want to divide it up into multiple sections, perhaps also providing a descriptive label on each section. To do this, use a sequence of fieldset elements inside the form element. Here is the content model:

element fieldset
{ Common.attrib,
  legend,
  Flow.model
}

Here is the content model for the legend element that titles each fieldset element:

element legend
{ Common.attrib,
  Inline.model
}

Here's an example of the use of fieldset.

  <form action="handler.cgi" method="post">
    <fieldset>
      <legend>Attitudes about fish</legend>
      ...form elements...
    </fieldset>
    <fieldset>
      <legend>Attitudes about birds</legend>
      ...form elements...
    </fieldset>
  </form>