In definitions of anonymous complexTypes of elements (192):

abstract [ref],

alt [ref],

apiname [ref],

area [ref],

audience [ref],

author [ref],

b [ref],

body [ref],

boolean [ref],

brand [ref],

category [ref],

chdesc [ref],

chdeschd [ref],

chhead [ref],

choice [ref],

choices [ref],

choicetable [ref],

choption [ref],

choptionhd [ref],

chrow [ref],

cite [ref],

cmd [ref],

cmdname [ref],

codeblock [ref],

codeph [ref],

colspec [ref],

component [ref],

conbody [ref],

concept [ref],

context [ref],

coords [ref],

copyrholder [ref],

copyright [ref],

copyryear [ref],

created [ref],

critdates [ref],

data [ref],

data-about [ref],

dd [ref],

ddhd [ref],

delim [ref],

desc [ref],

dl [ref],

dlentry [ref],

dlhead [ref],

draft-comment [ref],

dt [ref],

dthd [ref],

entry [ref],

example [ref],

featnum [ref],

fig [ref],

figgroup [ref],

filepath [ref],

fn [ref],

foreign [ref],

fragment [ref],

fragref [ref],

glossdef [ref],

glossentry [ref],

glossterm [ref],

groupchoice [ref],

groupcomp [ref],

groupseq [ref],

i [ref],

image [ref],

imagemap [ref],

index-base [ref],

index-see [ref],

index-see-also [ref],

index-sort-as [ref],

indexterm [ref],

indextermref [ref],

info [ref],

itemgroup [ref],

keyword [ref],

keywords [ref],

kwd [ref],

li [ref],

lines [ref],

link [ref],

linkinfo [ref],

linklist [ref],

linkpool [ref],

linktext [ref],

lq [ref],

menucascade [ref],

metadata [ref],

msgblock [ref],

msgnum [ref],

msgph [ref],

navtitle [ref],

no-topic-nesting [ref],

note [ref],

object [ref],

ol [ref],

oper [ref],

option [ref],

othermeta [ref],

p [ref],

param [ref],

parml [ref],

parmname [ref],

pd [ref],

permissions [ref],

ph [ref],

platform [ref],

plentry [ref],

postreq [ref],

pre [ref],

prereq [ref],

prodinfo [ref],

prodname [ref],

prognum [ref],

prolog [ref],

propdesc [ref],

propdeschd [ref],

properties [ref],

property [ref],

prophead [ref],

proptype [ref],

proptypehd [ref],

propvalue [ref],

propvaluehd [ref],

pt [ref],

publisher [ref],

q [ref],

refbody [ref],

reference [ref],

refsyn [ref],

related-links [ref],

repsep [ref],

required-cleanup [ref],

resourceid [ref],

result [ref],

revised [ref],

row [ref],

screen [ref],

searchtitle [ref],

section [ref],

sep [ref],

series [ref],

shape [ref],

shortcut [ref],

shortdesc [ref],

simpletable [ref],

sl [ref],

sli [ref],

source [ref],

state [ref],

stentry [ref],

step [ref],

stepresult [ref],

steps [ref],

steps-unordered [ref],

stepxmp [ref],

sthead [ref],

strow [ref],

sub [ref],

substep [ref],

substeps [ref],

sup [ref],

synblk [ref],

synnote [ref],

synnoteref [ref],

synph [ref],

syntaxdiagram [ref],

systemoutput [ref],

table [ref],

task [ref],

taskbody [ref],

tbody [ref],

term [ref],

tgroup [ref],

thead [ref],

title [ref],

titlealts [ref],

tm [ref],

topic [ref],

tt [ref],

tutorialinfo [ref],

u [ref],

uicontrol [ref],

ul [ref],

unknown [ref],

userinput [ref],

var [ref],

varname [ref],

vrm [ref],

vrmlist [ref],

wintitle [ref],

xref [ref]

The class attribute supports specialization. Its predefined values help the output transforms work correctly with ranges of related content.

<xs:attribute name="class" type="xs:string"/>

Namespace:	{global namespace}
Type:	xs:string
Defined:	globally in commonElementMod.xsd; see XML source
Used:	at 192 locations

XML Representation Summary
<...
	class	=	xs:string
...>