http://www.w3.org/1999/xhtml
element fieldset

Documentation

      The fieldset element is used to group form fields.
      Only one legend element should occur in the content
      and if present should only be preceded by whitespace.

      NOTE: this content model is different from the XHTML 1.0 DTD,
      closer to the intended content model in HTML4 DTD
      

Model

<fieldset
  class = xs:NMTOKENS
  dir = <TODO local simpleType in attribute>
  id = xs:ID
  lang = LanguageCode
  lang = xs:language
  onclick = Script
  ondblclick = Script
  onkeydown = Script
  onkeypress = Script
  onkeyup = Script
  onmousedown = Script
  onmousemove = Script
  onmouseout = Script
  onmouseover = Script
  onmouseup = Script
  style = StyleSheet
  title = Text>
(legend, ((p | (h1 | h2 | h3 | h4 | h5 | h6) | div | (ul | ol | dl) | (pre | hr | blockquote | address) | fieldset | table) | form | (a | ((br | span | bdo | map) | object | img) | (tt | i | b | big | small) | (em | strong | dfn | code | q | samp | kbd | var | cite | abbr | acronym | sub | sup) | (input | select | textarea | label | button) ) | (noscript | (ins | del | script) ) )* )
</fieldset>

class

dir

id

lang

lang

In due course, we should install the relevant ISO 2- and 3-letter codes as the enumerated possible values . . .

onclick

ondblclick

onkeydown

onkeypress

onkeyup

onmousedown

onmousemove

onmouseout

onmouseover

onmouseup

style

title

Source

<xs:element name="fieldset">
  <xs:complexType mixed="true">
    <xs:sequence>
      <xs:element ref="legend"/>
      <xs:choice maxOccurs="unbounded" minOccurs="0">
        <xs:group ref="block"/>
        <xs:element ref="form"/>
        <xs:group ref="inline"/>
        <xs:group ref="misc"/>
      </xs:choice>
    </xs:sequence>
    <xs:attributeGroup ref="attrs"/>
  </xs:complexType>
</xs:element>